Watch Murder in the 21st

A vibrant, social media savvy, 15-year-old girl goes missing in a small town, leaving the community perplexed to what happened. As her love ones search desperately to find her, a local teenage hangout spot might hold the clues to her ultimate doom.

A young, pregnant woman is found dead of an apparent suicide in Saginaw, MI, but her family and friends don't believe it. As police dig deep to get to the truth, they discover a shocking secret they never saw coming.

A sudden illness takes hold of a beloved doctor, leaving her family helpless as the illness takes a fatal turn. The investigation into her death takes her family on a harrowing journey into the dark heart of a monster who has been at their side all along.

A jilted lover takes to the internet to stalk her ex and threaten his girlfriend. When she finally follows through on her violent threats, detectives find themselves entangled in a deadly web of deception.

The community of Macon, GA is gripped in a wave of terror when a beautiful law student disappears from her apartment complex. Nobody knows where she could be or what could have happened, until the shocking discovery of a body leads investigators uncomfortably close to home.

A horrific quadruple homicide goes unsolved for over a decade. While one investigation goes cold, another heats up as the search for a missing couple holds the key to unravelling the secrets of a serial killer.

A brutal attack on two employees of a high-end shop leaves one woman dead and another scarred by the memory of the events she survived. As detectives make sense of the horrific tale, bizarre clues bring them to a shocking truth.

The peaceful town of Mountain City, TN is rocked when a beloved young couple is found brutally murdered in their home. As police search for their killer, they uncover a family enmeshed in sinister secrets and lies.

When a 19-year-old struggling to make it on her own goes missing, her family kicks into high gear to find her. As precious time runs out and the hope of bringing her home alive grows dim, two unlikely people team up to confront a dangerous predator.

Police are hard pressed to find solid leads when a 19-year-old girl vanishes without a trace. After her body is found dead on an isolated road, a frenzy of theories and suspicion from national news and amateur web sleuths takes detectives down a web of confusion until the heartbreaking truth is revealed.