When a woman is missing and her car turns up empty, police suspect a homicide.

What begins as a frantic 911 call to help an assaulted neighbor ends in the most bizarre investigation the small town of Walsenburg, Colorado has ever seen - complete with a twisted tale of torture, family secrets, and a fallen Jehovah's Witness.

Soho House Hotel in New York City was the scene for a rising swimwear designer and her trust fund boyfriend to network and get a good night's rest. But for one of them, it will be their last.

Two hotel employees are discovered murdered inside a flat near Heathrow Airport. Ultimately, the story has a twist so shocking that trained investigators never see it coming.

In the quiet town of Libertyville, this house that has witnessed unspeakable tragedy. From the unsolved double homicide of millionaires Bruce and Darlene Rouse to the underground mob scene that resulted in murder, this house has seen it all.

An elegant Victorian mansion located in the once prestigious millionaires row in Old Louisville has many evil secrets residing within its walls. Over the years, it was home to a doctor who experimented on patients, a demented tenant who beat his landlord to death and two lover who are driven to murder.

The Greystone Mansion has a malevolent backstory like no other. Built in the 1920s by oil tycoon, Edward Doheny, the Greystone's bloody history has been plagued by murder, suicide, and unexplained accidents.

At the University of Kentucky, a single shot shatters the hopes and dreams of an unsuspecting group of students, leaving one student dead. Police are baffled until a young woman comes forward with a life-changing confession.

The future is bright for the young, talented debate stars attending Samford University. The illustrious program trains the leaders of the future at a college known for its rigorous work ethic and safe community. But when a murder hits right at their heart, the entire campus is shaken to its very core.

For a group of accomplished fraternity brothers, years of hard work and ambition will soon culminate in graduation from the University of Maryland. But campus life isn't so charmed for all students, and resentment from those outside of the brotherhood fester in unlikely places. Tensions erupt one fateful night, and a vengeful act leave lives shattered by a raging fire and tragic murder.

Tiffany Sayre, a 26-year-old mother of two, was last seen alive around midnight on May 11, 2015. Her body was found on June 20, 2015, in a culvert along a rural highway. Her manner of death is Homicidal Violence and her case remains open.

May 29, 2015: Eighteen days after Tiffany Sayre's disappearance.

While searching for the fifth missing woman, another body is found. With the help of an anonymous tip, police are onto a possible suspect within hours. The community digs in once again on the possibility of a serial killer.

After discovering one of the missing women was friends with one of the women found dead, police redouble their efforts to find the missing woman. A person of interest is considered when the news of another missing girl sends Chillicothe into a panic.

When Diana spoke to her daughter Wanda Lemons on October 2, 2014, everything seemed to be on track. But then Wanda went silent. At first, a tip that she caught a ride to Texas gives law enforcement hope that she might be alive. But further investigation into her case soon makes investigators think otherwise.

For college sweethearts Ashley Freeman and Mike Grinnan, a late-night drive to a secluded Texas hill leads to a night of terror and a desperate fight for survival.