Investigation Discovery continues its heritage of providing in-depth, compelling documentaries & series that challenge viewers to think about key issues that shape our culture and define our world.

Investigation Discovery HD

Investigation Discovery

Family members go missing from their home in Hudson, Fla., and loved ones fear the worst; following a frantic search, the family is found, but not all of the members are alive; courtroom testimony reveals the chilling details of what happened.

What Lies Beneath

In Cold Blood

After a body is discovered in Silver Lakes, Calif., detectives must piece together a difficult puzzle; they uncover a web of lies leading to a sordid tale of betrayal; the truth finally emerges at trial, and the identity of the killer is revealed.

Blood on the Tracks

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Real-life murder cases unfold as whodunits, featuring CCTV footage, courtroom footage, news coverage, and home movies.

S1 E1 | Blood on the Tracks

E2 | In Cold Blood

E1 | Blood on the Tracks