Investigation Discovery

A Valley City, North Dakota, college student is strangled and stabbed in her own apartment.

An Iowa mum is hailed a hero when she shoots an intruder in her home. But as the case evolves, detectives encounter a manipulator seeking revenge.

A teacher is blindsided by news of her husband's secret double life.

The midnight murder of a snowplowman puts his friends on edge as their tiny town struggles to root out the culprit.

When a mother meets three strangers, she ends up fighting for her life. They kidnap and torture her, leaving her for dead in the Arkansas forests.

When a software consultant runs for governor in California, the press uncover his ties to the unsolved murder of 41-year-old millionaire David Coffin.

A father's desperate search for his daughter leads him to an abandoned cabin in rural Canada. A surprise witness helps expose unspeakable crimes.

Marissa loves the thrill of stripping under the spotlight, but she's leaving her husband Dale in the dark.

To solve the murder of a hard-working father of five, Detective James Colley must untangle a web of twisted relationships and bizarre fantasies.

Ashley's new confidence enrages estranged husband Terry, who stalks her to a secluded lot, ready to reclaim control in the deadliest way.

Killers murder an adrenaline-junkie father, and detectives sift through tales of chicken fights, and a mysterious figure nicknamed "The Witch Doctor."

In Pennsylvania, the body of a computer programmer is found submerged in a bathtub. Leads are scarce until detectives uncover a series of voicemails.

In 1996, a college co-ed vanishes and is presumed dead. Decades later, a discovery found six feet under turns this case upside down.

An encounter with a childhood crush turns Alessia Mesquita's life upside down.