Investigation Discovery HD (Pacific)

When a woman disappears in Florida, her friends uncover a hidden life filled with new relationships and secrets. As investigators follow the trail, suspicion shifts toward someone in her inner circle who may know more than they admit.

Bridget Shiel, a 19-year-old escort and rap video dancer, meets a brutal end in 2016 when someone shoots her and leaves her naked in an Atlanta park.

Actress Melonie Haller is poised for stardom after appearing in the television series "Welcome Back, Kotter" and a pictorial in the March 1980 edition of Playboy; eager for her next role, she goes to a party in the Hamptons that takes a violent turn.

When a woman disappears in Florida, her friends uncover a hidden life filled with new relationships and secrets. As investigators follow the trail, suspicion shifts toward someone in her inner circle who may know more than they admit.

Bridget Shiel, a 19-year-old escort and rap video dancer, meets a brutal end in 2016 when someone shoots her and leaves her naked in an Atlanta park.

Actress Melonie Haller is poised for stardom after appearing in the television series "Welcome Back, Kotter" and a pictorial in the March 1980 edition of Playboy; eager for her next role, she goes to a party in the Hamptons that takes a violent turn.

When Heidi's alcoholic husband, Chris, goes missing, she searches far and wide to find him, getting help from Chris' wider family; after a missing person's report is filed, police uncover a dark secret hidden in the basement of the marital home.

In Ohio, Jack and Linda Myers are shot to death in their sleep, and the only eyewitness is their sleepy 4-year-old grandson; now, family members speak about what happened that night and share home movies revealing a monster living in their midst.

Manling Williams returns home to find her young sons murdered and her sword collector husband, Neal, stabbed to death.

In one of the most exclusive neighborhoods in Washington, D.C., police discover a gruesome murder scene amongst the charred ruins of a mansion.

When police discover Betty Sue Short murdered in her home, they notice disturbing similarities with another recent killing in the community of Kingsport, Tenn.

A young mother is found brutally murdered in her home in Chestnut Ridge, N.Y.; detectives scratch their heads over snowy footprints that lead up to the house but not away from it.

In August 2000, 17-year-old Jessica Carpenter is found murdered in her Aiken, S.C., home by her mother; local reporters and family members tell the story of a town frozen in terror as police search for a possible serial killer on the loose.

In May 2017, high school teacher Theresa Lockhart is a no-show at her confirmation sponsor's big event; her car is discovered with nothing inside, prompting police to turn the community upside down.

In March 2014, North Carolina High School freshman Danielle Locklear slips out to see a friend but never returns home; as hours turn to days, her family members as well as the townspeople begin to wonder if a killer could be in their midst.

In Alabama, Brucetravius Frazier lies dead in his car from a gunshot wound to his head; a subsequent attempt on a witness's life causes police to realize they're not dealing with the average killer and must work quickly to bring them to justice.

Police rely on an unlikely source of information as they search for the person responsible for shooting 28-year-old D'Angelo White.

In Georgia, Robert Short arrives home to find his wife, son and granddaughter murdered.

A dismembered torso turns up in a Florida forest, and the discovery launches detectives across the U.S. to search for answers; with only a tattoo found on the victim, investigators must solve this horrific mystery before the killer is gone for good.

When a model scout approaches two high school boys for photos with the lure of cash and a glossy portfolio, they find it hard to resist her advances.

When a teenager goes missing after meeting someone online, police discover a predator far more dangerous than they ever imagined: a serial killer on the loose.

When her fairy-tale marriage crumbles, a young mother questions just what kind of family she married into; a bitter custody battle leads to a vicious cyberstalking campaign with devastating real-life consequences.

When her fairy-tale marriage crumbles, a young mother questions just what kind of family she married into; a bitter custody battle leads to a vicious cyberstalking campaign with devastating real-life consequences.

A high-profile Silicon Valley couple break up and begin a heated custody battle; when one parent vanishes just before a scheduled visit, police uncover a case fueled by greed, betrayal and suspects with everything to lose.

Police have a puzzle to solve when they find a gifted programmer and a jilted lover at the scene of 62-year-old Kathy Anderson's murder; nothing can prepare them for where this investigation will lead.