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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.

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.

When rising star Rebecca Schaeffer is murdered, Hollywood panics. Detectives investigate who killed the beloved actress, and if a copycat killer is on the loose.

31-year-old violinist Helen Mintiks is found murdered in an airshaft at the Metropolitan Opera House. Could there be a real life Phantom of the Opera.

In 2013, 17-year-old Alexis Murphy, rising social media star and athlete, disappears along Route 29 with no trace until a security video reveals a chilling clue.

In August 1992, Tennessee landowner Allen Roberts arrives home to discover his wife is missing. Suspicion soon falls on him, but is someone else the culprit.

Two 20-year-olds suffer personal tragedies then have their own lives abruptly taken. Will their families be able to prove what really happened.

Whilst delivering newspapers, a pregnant woman is murdered. Are strangers responsible for the brutal killing, or are the culprits known to the victim.

In 1992, a college student disappears after her car breaks down on the highway. Police are stumped when her body is found 500 miles from where she vanished.

In the mountains of Colorado a young pilot goes missing without a trace, leaving behind her baby. Police unravel a story far more horrifying than they imagined.

Three men die over a span of 12 years, with no suspicion of wrongdoing. But when a deadly car explosion rips through Florida, a new investigation begins.

A burning car is found by the side of a highway on the same night a single mother of two is reported missing. The two events lead investigators to a notorious criminal.

A tiny town in Maine with a population of 80 residents is torn apart when a couple are shot dead in their own home. Who murdered the high school sweethearts.

After the murder of a mother on a remote road, police dig into her bitter custody battle and uncover a disturbing bond between her ex and his mother.

Luke D'Wit poisoned his millionaire neighbours so he could take over their business. How did his 999 calls help the police bring him to justice.