ID

Family, friends and investigators recount the most provocative crimes ever committed by the unlikeliest of pairs: sisters. How and why do they descend into darkness.

Two sisters with little in common cope with their overly protective mother in very different ways and, in the end, with very deadly consequences.

In Mississippi, a tight-knit family is torn apart when an affair is uncovered. Two people are killed and secrets revealed during the hunt for the killer.

When a lonely widow falls in love again with a charming real estate agent, her daughter is suspicious of him. An investigation exposes an entirely secret life.

Amber vanishes on Friday the 13th. A year later, Chelsea disappears. A survivor links the cases as police race to stop a hidden predator.

When 20-year-old Chloe Randolph gives birth to a baby boy, her family is over the moon, but what should be a blissful time turns into a waking nightmare.

For years, Bill, Stephanie, and their three kids hide their torment while struggling to keep up appearances. But in 2011, the façade shatters for good.

When two children are found dead, police are convinced their parents are implicated. But will they be able to pin the heinous crime on their supposed guardians.

When a series of young females are murdered, the police hunt for the man called The Co-Ed Killer. Can they catch him before more women are killed.

Two tight-knit sisters fall out over an inheritance from their mother. Years later, one of the sisters dies a painful and mysterious death.

Sisters Janice and Betty plot a murder and its cover-up. Their plan has a fatal flaw, however, as they leave the victim lying by the side of the road.

In Mississippi, a tight-knit family is torn apart when an affair is uncovered. Two people are killed and secrets revealed during the hunt for the killer.

When a lonely widow falls in love again with a charming real estate agent, her daughter is suspicious of him. An investigation exposes an entirely secret life.

In 2004, Nurse Julie suddenly dies of kidney failure. When suspicious detectives look closely into the overly grieving husband, they discover a web of lies.

In 1999, 47-year-old Miriam Illes is found dead in her home, having been shot through her kitchen window. Her estranged husband has a strong alibi, but is he innocent.

In 1994, a 55-year-old businessman is found shot in his kitchen. The police suspect his disabled son, but would he have had the capability to carry out a murder.

In 1985, Detective McLean responds to a report that a young mother has been shot dead. Her step-daughter confesses to the killing, but is she telling the truth.

When excellent student Danielle Locklear disappeared, police considered her a runaway. But, her family decide to investigate themselves and the truth shocks them.

One evening in 2010, 40-year-old Rachael Anderson called a friend regarding a home improvement project. Then, she vanished and eight years later is still missing.

College student Jessica O'Grady vanishes late one night. When another woman disappears without a trace, locals wonder if a serial killer is on the loose.

In 2008, Alisha Sidie, a 27-year-old mother of two vanishes in a small cabin vacation town in Wisconsin. The whole community mobilises for the search.

What Happened To Baby Lisa? In 2011, a baby goes missing from her home. The family fears that she has been kidnapped - but are accused of being responsible for her disappearance.

When Mike Williams fails to return from a duck hunting excursion, it's thought he drowned in a boating accident. 17 years later, his murdered body is found.

A fire chief's wife is found burnt to death in her home. But an autopsy reveals the cause of death was a gunshot to the head, shocking a small Louisiana town.

In 1980, a teen goes for a run around her hometown in Maine. Days later, her savagely beaten body is found. Police re-examine the case when her mum intervenes.

29-year-old Elizabeth Ferrell's body was found floating in the Louisiana bayou. How did the mother end up dead nearly 300 miles from her Texas home.

In 1995, Christa Pike was introduced to Satanism. Her fascination with the dark underworld grows until it comes to a deadly head in the woods one night.

With shoddy evidence collection and bad police work exposed at trial, Karen's legal team suggests that someone may have killed John inside the house.

As the case sparks a civil war in Boston, some dub Karen 'America's Happiest Murder Defendant.' At trial, humiliating texts shock the courtroom.

Experts debate the cause of John's injuries, and closing arguments begin. Karen anxiously awaits her fate, and the jury delivers an unexpected note.

When a bag containing body parts washes up on the shore of a lake, the search for missing 10-year-old Holly Jones becomes a grisly murder investigation.

Wrong. When Nikki McPhatter doesn't show up for her usual work shift, her friends immediately worry - and point investigators to her online relationships.

Musician Ray Merrill thinks he has found his dream woman in Brazil through a dating website. But as the exotic romance heats up, money starts to go missing.

A graduate student is swept off her feet by someone new. But as their relationship progresses, revelations make it clear nothing is quite what it appears to be.

Becky Sue breaks up with her abusive boyfriend and moves in with a relative to make a fresh start. When she suddenly goes missing, some people suspect foul play.

A vivacious 33-year-old drowns in the middle of a crowded lake. The investigation untangles a dark, nefarious past that includes theft and multiple murders.

In 2015, detective Scott Sanderson uncovered a harrowing case involving a missing mother and her baby. The disturbing truth shatters everyone involved.

In 2015, a hunter comes across a woman in the woods who has been murdered. Detectives unravel a web of dark secrets and lies that lead to a twisted killer.

When a farmer comes across a car with a dead woman inside it, police believe it is a sick sex crime. But, investigators reveal a sinister and evil truth.

The baffling murder of a beautiful young woman leads police to zero in on two potential suspects - her new boyfriend and an obsessed stalker.

The search for the man who murdered a single mother might lead police to the perpetrator of a second brutal crime with chilling similarities.

Where Is Miya? A college coed disappears, and her family launches a desperate investigation to find her. What they discover will change their lives forever.

A murdered teenager's body mysteriously turns up in the rural Iowa countryside. Will the smallest clue be the key to bringing her killer to justice.

In 1969, racial tensions escalated into riots in York, Pennsylvania. Two people were killed - a white police officer and an African-American mum.

In 1977, a Philadelphia woman goes missing. 18 months after her disappearance, police uncover the shocking truth. After 30 years, the killer is still on the run.

In July of 2010, NBA star Lorenzen Wright goes missing outside of Memphis. When his dead body is discovered in the woods, investigators struggle to find the truth.

On June 6, 1992, Suzie Streeter and Stacy McCall are out celebrating high school graduation. By morning, the teens are missing, along with Suzie's mother.

In Pennsylvania, Kevin and Joanne Dowling like to capture their kids' milestones on video. But when a woman in a nearby town is shot dead, Kevin is accused of murder.

Tony believes his mother found happiness with Deputy Dave Rogers, until he sees the dark truth a man who uses his badge to terrorise and abuse.

We All Go A Little Mad. Police find a family dead, a horror film still playing, a bloody mask nearby - and a letter addressed to the woman who voiced 'The Exorcist' demon.

Adrianne Robert was found dead by her roommate after a night out. Investigators use security footage to hunt for a calculated killer.