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Chris and Theresa seem like a perfectly matched couple. But when one of them vanishes, it leads to five months of hell and a shocking final act.

Murder, like true love, is written in the stars. Investigators, family and friends recount chilling cases of relationships that end in homicide.

A woman's body is found in a tent bag in the Kentucky woods. 1000 miles away, a family seeks a missing mum. Both cases go unsolved for decades - until now.

Emergency workers find the body of Megan Sharpton at the centre of a brush fire and police race to track down the attacker before he claims another victim.

The brutal murder of Mike Greene, a retired police officer, and wife Terri shatters their small Michigan town. Was it a personal grudge, or a less obvious motive.

A young bellhop goes missing on a treasure hunting trip in the Arizona wilderness. Will rescuers find Jesse or is he another victim of the Dutchman's Curse.

The tight-knit community of Wagoner, Oklahoma, is shocked when Stacy Shoemaker is found dead by her daughter. Who could have committed this horrific crime.

The Long Branch Saloon is the local hangout in the small town of Poteau. That is until its beloved proprietor goes missing, leaving behind a splatter of blood.

When the home of a prominent self-made millionaire is showered with gunfire, investigators are led down a path of bitter rivalries, secrets and murder.

A teenage boy runs away after a fight with his grandma; years later a disorientated young man with amnesia is taken in by concerned strangers. Is this Jarrod.

Panic spreads in town when a missing young grocery clerk turns up dead. An unlikely resident gives information leading detectives to her tangled love life.

When Sharon Robinson's body is found outside New Orleans, her abusive corrupt police officer boyfriend is a suspect. But had she been involved in a bigger crime.

In 2010, Amber Jackson disappeared from her Kauai home, only to be found brutally murdered days later. Was it the act of a temperamental lover or a stranger.

Where Is Tom Brown? Conspiracy theories rock a Texas town after a high school football player mysteriously vanishes. Some very unusual suspects emerge.

In a struggling Pennsylvania town, the killing of an immigrant splits the community. When star football players emerge as suspects, locals engage in a coverup.

In Georgia, a suspected drug dealer won't go down without a fight. In Ohio, police fear for their lives when faced with an ambush from a hidden gunman.

After a mother is brutally murdered in her home, her husband and his bizarre alter ego are the prime suspects after he calls 911.