Shocking crime scenes, unsolved cases, intense investigations and more. 

Crime Scenes

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Investigation Discovery continues its heritage of providing in-depth  compelling documentaries & shows.

Investigation Discovery

A gruesome murder puzzles police; a cryptic message is left behind at the crime scene, but the identity of the killer remains a mystery; promises are broken, and old secrets emerge, breathing new life into the investigation.

Dead of Night

Alibi Lullaby

A young college student vanishes; later, a shocking discovery is made, and townspeople begin to question those they once believed were innocent; before long, the truth rises from the dead of night.

I Know What Happened to That Girl

A woman's attempt to flee a troubled relationship leads to her demise; police discover a haunting message left behind, but the case goes cold for years until a prime suspect's macabre desire for blood is revealed.

He Shouldn't Be With Us

In Allentown, Pa., a serial killer preys on women in the middle of the night; when one woman refuses to be his next victim, the killer goes on a relentless tirade that ends in his own demise.

Kill Me Twice

In Great Falls, Mont., police are on high alert after Morris Davis and Suzette Pritchard are murdered just one year apart; one tip will change everything as the police hunt for a killer.

That's My Brother

In Bend, Ore., Halloween night ends with a young woman's disappearance; suspicion of foul play runs deep, but her whereabouts remain a mystery; over time, secrets begin to emerge and lead investigators to the least likely of suspects.

Nothing to Hide

True stories of victims who are thrust into real-life nightmares while working the graveyard shift when they are the most vulnerable.

S2 E2 | That's My Brother

E6 | Alibi Lullaby

E5 | I Know What Happened to That Girl

E4 | He Shouldn't Be With Us

E3 | Kill Me Twice

E2 | That's My Brother

E1 | Nothing to Hide