T+E

The story of a woman who is followed by the evil spirit of a bootlegger; Felicia Sills finds a Civil War-era ring.

Walk the halls of this home for the differently abled, where overcrowding, lack of funding and understaffing lead to neglect and rampant abuse.

A real-life gnome frolics in an Arizona garden; a coffin opens by itself in an English hostel; leaked footage shows a UFO hovering near a bomb testing site in Nevada.

A grieving woman uses her TV to communicate with her deceased boyfriend; creatures with tentacles swim through the skies above Colorado; a heartbroken ghost gazes forlornly from the window of an abandoned home.

Meet Julian, who tells Danny about the towering shadow figure that has been terrorizing him; delve into one of the scariest cases Danny has investigated and find out if this apparition is supernatural or something more sinister.

Danny Robins investigates the real-life stories of seemingly paranormal encounters; in the process, he talks to people who say they have encountered the supernatural and consults experts in order to discover the truth.

Guy and Maurice work to free Janet from the grip of the poltergeist as the case reaches its conclusion.

Shiver as paranormal investigators Corine, Leanne, and Kelly tap into the bloody history of one of Ireland's ghostliest spots; find out who, or what, is lurking in the shadows of this terrifying fortress, which could be a portal to the underworld.

Discovering evil beings that hide in the shadows, waiting for a chance to pounce; seeing why a Pennsylvania well is a gateway to terror; crossing paths with an otherworldly stalker in Georgia; exorcize a dark spirit in a South Carolina family home.

A real-life gnome frolics in an Arizona garden; a coffin opens by itself in an English hostel; leaked footage shows a UFO hovering near a bomb testing site in Nevada.

Shiver as paranormal investigators Corine, Leanne, and Kelly tap into the bloody history of one of Ireland's ghostliest spots; find out who, or what, is lurking in the shadows of this terrifying fortress, which could be a portal to the underworld.

Exploring towns where tragedy has opened the door to another world; feeling unsettling energy in a Mo., secret society building; seeing an innocent game turn supernatural near Philly; stepping into a Ga., B & B where scary spirits check in nonstop.

A real-life gnome frolics in an Arizona garden; a coffin opens by itself in an English hostel; leaked footage shows a UFO hovering near a bomb testing site in Nevada.

A grieving woman uses her TV to communicate with her deceased boyfriend; creatures with tentacles swim through the skies above Colorado; a heartbroken ghost gazes forlornly from the window of an abandoned home.

A spirit box session at an abandoned murder mansion goes awry; UFOs gather in a geometric formation in New Hampshire; a poltergeist plays the accordion in Russia.

Spirits move out of the shadows to torment the living; siblings are chased by a menacing shadow figure, ghostly whispers; and mournful serenades haunt a family's new home, and a dark entity repeatedly attacks a young boy.

Walk the halls of this home for the differently abled, where overcrowding, lack of funding and understaffing lead to neglect and rampant abuse.

Destructive spirits play dangerous games with their prey; a poltergeist attaches itself to a sensitive young girl; a shadow man terrorizes a boy in the middle of the night; and a demonic entity violently attacks a teenager in his bed.

The team finds startling paranormal links to Montreal's boozy, corrupt past in the 1920s and '30s, such as a man whose corpse became an attraction, a woman haunted by ghost children, and a murder victim in a notorious cabaret.

Hunt for the truth in Massachusetts; Salem's ghosts -- including that of the first woman hanged for witchcraft -- reveal things about the city's infamous witch trials; a message from a man executed in the worst way imaginable.

Buccaneers who ran a South Carolina port in the golden age of piracy are summoned; the truth about a ghost ship and a creepy bedroom in the city's oldest tavern is uncovered; a spirit stalking one of the investigators is confronted.

Broadcaster Dom Joly and his family are being taunted by a ghostly opera singer, making a surprising historical connection as Jayne unravels this musical mystery.

Sailing off to Shaun Williamson's Isle of Sheppey home, where a shadowy female figure waits at the window; facing a violent specter during a spirit-trigger session; seeing if the soul of a wife killer is destroying the peace in the actor's house.

A man shares his story of a monster attack; a couple experience violent paranormal activity; Holly tells of being haunted by her ex-husband's ghost.

A woman's son is put in danger's way; a young boy is terrorized by a shadowy figure; Micky faces an evil spirit.

A spirit box session at an abandoned murder mansion goes awry; UFOs gather in a geometric formation in New Hampshire; a poltergeist plays the accordion in Russia.

A ghostly white figure lurks above a child's crib in England; a terrifying jinn in Saudi Arabia grows more powerful as a man attempts to capture proof of its existence; spirits try to trap a paranormal investigator inside an empty tomb.

A psychic medium can't shake an unfriendly spirit in Texas; ghost hunters in Thailand taunt the dead; a Massachusetts mother gets too close for comfort to the Grim Reaper.

Broadcaster Dom Joly and his family are being taunted by a ghostly opera singer, making a surprising historical connection as Jayne unravels this musical mystery.

Walk the halls of this home for the differently abled, where overcrowding, lack of funding and understaffing lead to neglect and rampant abuse.

Joni's suspicion falls on an outcast from her past; Mina sees a game take a dark twist.

A spirit box session at an abandoned murder mansion goes awry; UFOs gather in a geometric formation in New Hampshire; a poltergeist plays the accordion in Russia.

Summoning the decidedly unfunny bogeyman that is chasing one half of the comedy duo "The Chuckle Brothers"; Investigating strange handprints and a pint-sized presence that might also be signs that Paul's late brother, Barry, is watching over him.

Joni's suspicion falls on an outcast from her past; Mina sees a game take a dark twist.

For many years, Heather Mason (Adelaide Clemens) and her father, Harry (Sean Bean), have been on the run from dangerous forces she does not understand. Heather continues to be plagued by terrifying nightmares and frightened by her father's disappearance, and on the eve of her 18th birthday, she discovers that she is not who she thinks she is. The revelation leads her deep into the demonic world of

A ghostly white figure lurks above a child's crib in England; a terrifying jinn in Saudi Arabia grows more powerful as a man attempts to capture proof of its existence; spirits try to trap a paranormal investigator inside an empty tomb.

Joni's suspicion falls on an outcast from her past; Mina sees a game take a dark twist.

The team examines the hauntings in the Scott County Jail, where they meet cutting-edge historians who believe that the paranormal field can help preserve history.

Brandon, Mustafa, Malia, and Kevin take a look at some shocking finds and new data, from environmental aberrations to electronic voice phenomena, and ponder a series of lingering questions from their investigations.

While Button House is treated for woodworm, Alison and Mike camp outside with the ghosts.

Alison invites Lucy to Button House for a sleepover.

Embark on an emotional paranormal journey with "Ghost Hunters" alums Brandon Alvis and Mustafa Gatollari; they help regular people get in touch with departed family, find lost connections and uncover haunting revelations about their ancestry.

Angelique, an Espiritismo practitioner, discovers that a deep bond with her aunt extends from beyond the grave, possibly connecting her with the terrifying premonitions of death she receives of those closest to her.

Mandy is someone who has been visited by her departed loved ones since childhood; she feels compelled to explore paranormal research and goes on to discover she possesses a level of mediumship abilities.

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The expert team from "Help! My House Is Haunted" is called in to investigate paranormal activity at the homes of British celebrities.

Going head-to-head with the ghostly gang that's trying to push TV star James Argent out of his million-pound manor house; discovering the tale of an unsolved murder in Epping Forest and seeing how it kicks off a new investigation.

Walk the halls of this home for the differently abled, where overcrowding, lack of funding and understaffing lead to neglect and rampant abuse.

Spirits take their seats in a haunted auditorium in Pakistan; a father and son on a hunting trip catch sight of a Sasquatch; a ghostly figure mysteriously fades away as it walks toward a morgue in Peru.

A ghost toys with a dog in Arizona; a disembodied hand haunts an abandoned Mexican prison; night vision binoculars capture footage of UFOs hiding in plain sight.

A man leaving work is startled by a gigantic UFO.

Angelique, an Espiritismo practitioner, discovers that a deep bond with her aunt extends from beyond the grave, possibly connecting her with the terrifying premonitions of death she receives of those closest to her.

Mandy is someone who has been visited by her departed loved ones since childhood; she feels compelled to explore paranormal research and goes on to discover she possesses a level of mediumship abilities.

The Lake Ozark and Osage Beach Police Departments must confront an unspeakable tragedy when one of their officers tragically dies in the line of duty.

Spirits take their seats in a haunted auditorium in Pakistan; a father and son on a hunting trip catch sight of a Sasquatch; a ghostly figure mysteriously fades away as it walks toward a morgue in Peru.

U.S. Navy veteran turned private investigator Jennifer Marshall and journalist Ozzy Mora investigate chilling claims and a mysterious death at the infamous Cecil Hotel in Los Angeles.

The Lake Ozark and Osage Beach Police Departments must confront an unspeakable tragedy when one of their officers tragically dies in the line of duty.

For many years, Heather Mason (Adelaide Clemens) and her father, Harry (Sean Bean), have been on the run from dangerous forces she does not understand. Heather continues to be plagued by terrifying nightmares and frightened by her father's disappearance, and on the eve of her 18th birthday, she discovers that she is not who she thinks she is. The revelation leads her deep into the demonic world of

A ghost toys with a dog in Arizona; a disembodied hand haunts an abandoned Mexican prison; night vision binoculars capture footage of UFOs hiding in plain sight.

U.S. Navy veteran turned private investigator Jennifer Marshall and journalist Ozzy Mora investigate chilling claims and a mysterious death at the infamous Cecil Hotel in Los Angeles.

A man leaving work is startled by a gigantic UFO.

Confronting the bloody, greedy past of Benham, Kentucky, where an ominous mountain and a historic mining conflict have turned the land into a hotbed of paranormal activity.

Hunting for restless souls in a coal mine that stands near a purported mass grave; examining the data after the team conducts a series of paranormal experiments and finding out if a living man's visits are keeping a departed spirit attached.

Looking for proof of apparitions, eerie voices and other inexplicable phenomena inside a grim execution site; the team explores Harlan County's courthouse and jail, where the fallout from a revenge killing and the coal wars lingers.

Leitreanna, a lifelong practitioner of Seminole spiritualism, believes she is visited by her departed father as she endures an operation, seeing him comfort her when she is in pain.

Stacy began to mend the relationship she had with her mom following her cancer diagnosis; her mother succumbed to her illness, she believes a number of paranormal occurrences are a testament to the love they have for each other.

Jessica recounts how as a child, she was visited nightly by Abraham Lincoln and a woman in a herringbone dress; Jessica was shocked, however, to learn the true identities of these figures after her mother cracked open a family album.

While Button House is treated for woodworm, Alison and Mike camp outside with the ghosts.

Alison invites Lucy to Button House for a sleepover.

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Following Ian through the 19th-century farmhouse where model-rocker Jo Wood feels something watches her; uncovering a spiritual connection to the land and learning why the area's history of witchcraft could relate to all this paranormal activity.

Joni's suspicion falls on an outcast from her past; Mina sees a game take a dark twist.

Touring the infamous Pauly Jail in Union Springs, Alabama, where Shane once had a life-changing experience; listen as chilling voices echo through the abandoned cells and spirits desperate to share.

Exploring the legend of Matilda Sorrel and her ties to the historic Sorrel-Weed House in Savannah, Georgia; getting chills when Shane, Dave, and Cindy visit this former estate and discover things.

A drumming session in New York is interrupted by a chilling apparition; a ghostly guest visits an Indiana museum after hours; a giant portal opens in the sky above Oregon.

A UFO crashes a family gathering in Louisiana; in the ruins of Chernobyl, a mutated being terrifies hikers camping out for the night; a woman encounters Bigfoot's angrier, more canine-like cousin.

A shadow figure torments a cursed man in Colorado; dark spirits attack paranormal investigators at a castle; a terrifying creature lurks in a backyard.

U.S. Navy veteran turned private investigator Jennifer Marshall and journalist Ozzy Mora investigate chilling claims and a mysterious death at the infamous Cecil Hotel in Los Angeles.

Campus police officers find a male student whose head has been smashed into his steering wheel and a female cowering nearby; a firefighter arrives on the scene of a car crash, only to realize that the car passed him a few minutes earlier.

Joni's suspicion falls on an outcast from her past; Mina sees a game take a dark twist.

Alison invites Lucy to Button House for a sleepover.

Broadhaven, a sleepy little seaside village in Wales, is known as the UFO capital of Europe.

Joni's suspicion falls on an outcast from her past; Mina sees a game take a dark twist.

Alison invites Lucy to Button House for a sleepover.

Broadhaven, a sleepy little seaside village in Wales, is known as the UFO capital of Europe.

An artist, his wife and children move into an idyllic hillside farm in Wales where they start to experience terrifying paranormal activity.

A UFO crashes a family gathering in Louisiana; in the ruins of Chernobyl, a mutated being terrifies hikers camping out for the night; a woman encounters Bigfoot's angrier, more canine-like cousin.

A shadow figure torments a cursed man in Colorado; dark spirits attack paranormal investigators at a castle; a terrifying creature lurks in a backyard.

Re-evaluating what we know about evolution, extinction, and animals' sacred roles. Dig up a Canadian dinosaur that sparks questions about fossilization, meet a prehistoric survivor in China, and see the religious parts crocodiles played in Egypt.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

The fate of Pharaoh Ramses III has long been clouded by rumors of a family plot against him; scientists examine the tomb, uncovering evidence that supports these ancient suspicions.

Brett Ryan paves a long road of deception. The serial-lying ex-con hides his bank-robbing past from his fiancé and misleads his family, before a late-night confession to his mother leads to a murder no one could have seen coming.

The PRS explores a New York state prison that was once a mental asylum.

Probe a case that inspired an eyewitness to write a book about UFO sightings.

A couple accidentally invites spirits into their home when they decorate their nursery; Julie Stuart falls in love with an antique dresser that turns out to be haunted; a couple opens the door for a dangerous spirit with a shocking identity.

Accounts of an amphibious UFO in Indonesia; a mass abduction in Australia; a slew of deaths in Wales after a strange sighting; searching for an alien library with an astronaut and meeting a scientist hunting for an interdimensional portal.

A tourist captures startling footage of a giant sea serpent in Alaska, an unsuspecting ghost hunter is assaulted by a vengeful spirit and a bipedal beast roams the hills alongside a California highway.

Following the work of police detectives in Britain as they navigate the intricacies of producing irrefutable evidence, conducting interviews and finding ways to make the guilty confess.

Confront the dark side of paramedic Paul Novak, who hid his deadly impulses beneath a veneer of heroism; explore the evidence that helped investigators determine that this manipulative, unfaithful man brutally murdered his estranged wife, Catherine.

Brett Ryan paves a long road of deception. The serial-lying ex-con hides his bank-robbing past from his fiancé and misleads his family, before a late-night confession to his mother leads to a murder no one could have seen coming.

Spirits take their seats in a haunted auditorium in Pakistan; a father and son on a hunting trip catch sight of a Sasquatch; a ghostly figure mysteriously fades away as it walks toward a morgue in Peru.

Accounts of an amphibious UFO in Indonesia; a mass abduction in Australia; a slew of deaths in Wales after a strange sighting; searching for an alien library with an astronaut and meeting a scientist hunting for an interdimensional portal.

A tourist captures startling footage of a giant sea serpent in Alaska, an unsuspecting ghost hunter is assaulted by a vengeful spirit and a bipedal beast roams the hills alongside a California highway.

Kelly and Steve travel to Montana to investigate the famous case of a young Indigenous woman who vanished after a night out; analyzing surveillance video and her social media posts could finally bring justice to her community.

Learn how influencer Mahek Bukhari and her mom, Ansreen, became the UK's first mother and daughter convicted of a double murder; see how the pair hatched a deadly plot when Hashim Ijazuddin tried to blackmail his much older ex-lover, Ansreen.

East Millinocket, Maine, is brought to its knees when its most popular teen turns up dead; for 38 years, answers elude police; with the help of a dedicated mother and a community that never forgets, the secret killer is finally exposed.

Kelly and Steve travel to Montana to investigate the famous case of a young Indigenous woman who vanished after a night out; analyzing surveillance video and her social media posts could finally bring justice to her community.

Learn how influencer Mahek Bukhari and her mom, Ansreen, became the UK's first mother and daughter convicted of a double murder; see how the pair hatched a deadly plot when Hashim Ijazuddin tried to blackmail his much older ex-lover, Ansreen.

East Millinocket, Maine, is brought to its knees when its most popular teen turns up dead; for 38 years, answers elude police; with the help of a dedicated mother and a community that never forgets, the secret killer is finally exposed.

Examining the discarded syringe that proved to be a cruel nurse's fatal slip-up; learning how police found a telltale piece of evidence in Vickie Dawn Jackson's trash that proved she'd been injecting otherwise healthy patients with a deadly chemical.

Accounts of an amphibious UFO in Indonesia; a mass abduction in Australia; a slew of deaths in Wales after a strange sighting; searching for an alien library with an astronaut and meeting a scientist hunting for an interdimensional portal.

A tourist captures startling footage of a giant sea serpent in Alaska, an unsuspecting ghost hunter is assaulted by a vengeful spirit and a bipedal beast roams the hills alongside a California highway.

Brett Ryan paves a long road of deception. The serial-lying ex-con hides his bank-robbing past from his fiancé and misleads his family, before a late-night confession to his mother leads to a murder no one could have seen coming.

Following paranormal investigators Leanne Sallenback, Kelly Ireland and Corine Carey as they begin their travels up British Columbia's famed gold rush trail to explore its history and its hauntings.

Re-evaluating what we know about evolution, extinction, and animals' sacred roles. Dig up a Canadian dinosaur that sparks questions about fossilization, meet a prehistoric survivor in China, and see the religious parts crocodiles played in Egypt.

Determining if exotic dancer Mata Hari was a spy or just a wartime scapegoat; solving the riddle of Kaspar Hauser, the boy who appeared from nowhere; trying to identify the Man in the Iron Mask, who died in a French prison without revealing his face.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

For over 1,000 years, people worldwide claim to develop injuries spontaneously.

During the renaissance, advances were made in both science and the arts, but many paintings have a mysterious UFO.

A terrifying creature with 1,000 teeth torments Allison Gilson's son; a young boy makes an imaginary friend but discovers it's not the only entity lurking in their new home; a ghost uses a boy to get to his mother.

Taking a look at strange crafts flying over power plants, airports and the Royal Palace in Sweden, a veteran with supposed UFO-related health issues and footage shown at a US congressional hearing.

A Florida man encounters an elusive Sasquatch; ghost hunters attempt to contact the spirit of a murder victim in Tennessee; a Las Vegas resident captures incredible footage of UFOs soaring through the skies.

Dig into chilling claims in the coal-mining town of Harlan, where a mysterious woman in white has appeared repeatedly; learn how dread has driven off some hard-boiled locals as the team tries to get to the bottom of these supernatural happenings.

Ancient terraces made of volcanic rock in Indonesia leave their origin still in enigma; hundreds of human skeletal remains are unearthed; a blood-red beach on Hormuz Island ignites speculations; penguin remains are discovered.

Confront the dark side of paramedic Paul Novak, who hid his deadly impulses beneath a veneer of heroism; explore the evidence that helped investigators determine that this manipulative, unfaithful man brutally murdered his estranged wife, Catherine.

East Millinocket, Maine, is brought to its knees when its most popular teen turns up dead; for 38 years, answers elude police; with the help of a dedicated mother and a community that never forgets, the secret killer is finally exposed.

Taking a look at strange crafts flying over power plants, airports and the Royal Palace in Sweden, a veteran with supposed UFO-related health issues and footage shown at a US congressional hearing.

A Florida man encounters an elusive Sasquatch; ghost hunters attempt to contact the spirit of a murder victim in Tennessee; a Las Vegas resident captures incredible footage of UFOs soaring through the skies.

From the ancient Babylonians to modern-day urban explorers, mankind has always been fascinated by abandoned places; discovering the allure that draws people to post-apocalyptic landscapes.

Meet Calvin Parker and Charles Hickson, who claimed they were abducted and examined by aliens aboard a UFO in 1973. Listen in as experts try to find the true story among the pair's polygraph.

A mass-produced series of paintings of crying children, a popular artwork in many houses in the 1980s, is believed to be related to a mysterious series of house fires at the time.

Check out clues left behind by a Yorkshire man's alien encounter. Review photos of a UFO crash site in Australia, meet a Canadian man whose voice was controlled by unknown forces, and witness unexplained.

From the ancient Babylonians to modern-day urban explorers, mankind has always been fascinated by abandoned places; discovering the allure that draws people to post-apocalyptic landscapes.

Meet Calvin Parker and Charles Hickson, who claimed they were abducted and examined by aliens aboard a UFO in 1973. Listen in as experts try to find the true story among the pair's polygraph.

A mass-produced series of paintings of crying children, a popular artwork in many houses in the 1980s, is believed to be related to a mysterious series of house fires at the time.

Check out clues left behind by a Yorkshire man's alien encounter. Review photos of a UFO crash site in Australia, meet a Canadian man whose voice was controlled by unknown forces, and witness unexplained.

In 2016 American Bianca Rudolph is found dead in her hunting lodge in Zambia; deemed an accident by the authorities, her husband of 34 years, multimillionaire dentist Larry Rudolph moves on with his life, with his lover.

Taking a look at strange crafts flying over power plants, airports and the Royal Palace in Sweden, a veteran with supposed UFO-related health issues and footage shown at a US congressional hearing.

A Florida man encounters an elusive Sasquatch; ghost hunters attempt to contact the spirit of a murder victim in Tennessee; a Las Vegas resident captures incredible footage of UFOs soaring through the skies.

Dig into chilling claims in the coal-mining town of Harlan, where a mysterious woman in white has appeared repeatedly; learn how dread has driven off some hard-boiled locals as the team tries to get to the bottom of these supernatural happenings.

The coastal metropolis of Miami faces a triple threat of crumbling limestone bedrock, ferocious superstorms and relentless rising oceans.

Visiting spirits that remain tied to the places that meant the world to them; feeling eerie energy in a historic Missouri mansion; facing a spectral sea captain in Nova Scotia; discovering a well of supernatural energy in a northern California hotel.

Following paranormal investigators Leanne Sallenback, Kelly Ireland and Corine Carey as they begin their travels up British Columbia's famed gold rush trail to explore its history and its hauntings.

The fate of Pharaoh Ramses III has long been clouded by rumors of a family plot against him; scientists examine the tomb, uncovering evidence that supports these ancient suspicions.

One of the most eerie places in the USA, the former Gettysburg orphanage; witnesses report disturbing experiences, the whispering voices of children in empty rooms and shadowy figures.

A poltergeist haunts Kristine McKee's new home and gets physical with her son; a friend's past life comes back to haunt Danielle Low with potentially life-threatening results; a paranormal entity attacks a woman, leaving her black and blue.

Exploring video evidence and testimony of the existence and nature of UFOs.

Paranormal investigators get a chilling response from a dearly departed rock legend; a ghostly canine joins its former owner for a nighttime stroll; a man and his co-workers spot a gaggle of UFOs in the Louisiana bayou.

Brett Ryan paves a long road of deception. The serial-lying ex-con hides his bank-robbing past from his fiancé and misleads his family, before a late-night confession to his mother leads to a murder no one could have seen coming.

A young recruit encounters aliens in the Nevada desert in the 1960s; he claims they were working with the US military and housed a spaceship in a secret hangar nearby.

Check out clues left behind by a Yorkshire man's alien encounter. Review photos of a UFO crash site in Australia, meet a Canadian man whose voice was controlled by unknown forces, and witness unexplained.

From the ancient Babylonians to modern-day urban explorers, mankind has always been fascinated by abandoned places; discovering the allure that draws people to post-apocalyptic landscapes.

Exploring video evidence and testimony of the existence and nature of UFOs.

Paranormal investigators get a chilling response from a dearly departed rock legend; a ghostly canine joins its former owner for a nighttime stroll; a man and his co-workers spot a gaggle of UFOs in the Louisiana bayou.

Neville's attempts to embrace island life backfire when a sandfly bite lands him in the hospital; a nurse takes her own life during a night shift.

Frank and Lu investigate a death threat at Runningbrook, an exclusive tennis club which hides a toxic threat.

Jack is rushed to a hospital after collapsing at the scene of a car crash; as Jack fights for his life, the team must identify the poison to save their friend.

Neville's attempts to embrace island life backfire when a sandfly bite lands him in the hospital; a nurse takes her own life during a night shift.

Frank and Lu investigate a death threat at Runningbrook, an exclusive tennis club which hides a toxic threat.