Bill Douglas is a respected doctor at Tufts University in Boston. But his focus isn't on science - it's on a bombshell prostitute he met in a red light district called the Combat Zone. Together, they lead double lives... leading to someone's murder.

LAPD investigators are on the hunt for a criminal stealing expensive yachts, but what they find instead is a mild mannered man among their own ranks... who's involved in a lot more than just boat theft.

Ernest and Charlene Scherer are found beaten and stabbed to death in their exclusive Northern California community. Police believe it was a robbery gone wrong until investigators hone in on the motive and learn about the killer's twisted double life.

When Special Forces Major David Shannon is fatally shot in his family home in Fayetteville, NC, investigators wonder if his job made him a target.

Chaos ensues in Fox Lake, IL, when an officer is found dead. With a potential cop killer on the loose, the town is on lockdown. But when sordid details of the dead officer's secret life come out, the case takes a surprising turn.

When Jean Claude Dominique is the victim of a hit-and-run, his wife Eliette rushes to his side. It's there she comes face-to-face with his OTHER wife. It's her first glimpse into his double life that leads to her fighting for her own.

Dr. Dirk Greineder is one of the most respected men in the upper class community of Wellesley, MA... that is, until a secret X-rated addiction spirals out of control and results in a gruesome murder no one saw coming.

The decomposed body of a San Francisco businessman is found floating in the California Aqueduct in Tracy, CA. Investigators initially suspect a family member, but without evidence, the case goes cold and It takes detectives several decades to find the real killer.

A mother and her two young sons vanish in rural Wyoming, prompting a nationwide search. Leads dry up and the case goes cold... until the revelation of a dark secret leads police to a homicide.

Bloomington, IL, Sergeant Jeff Pelo is a respected police officer and, at home, he's a model father and husband. When he's caught trespassing after midnight on a young woman's property, his spotless reputation comes under fire.

When dozens of women vanish from the Sunshine State in the late '60s, the get filed as presumed runways; police discover the bodies of two missing teens, uncovering the sadistic work of a prolific serial killer.

Mike Dixiano is heartbroken when his wife, Angela, dies from organ failure after a lifelong battle with drugs and alcohol. While friends and family grieve Angela's death, investigators can't find a death certificate and begin to suspect her husband.

When an aspiring kindergarten teacher in Dublin, Ireland goes missing, her family assumes depression over her mother's death drove her to suicide. They never suspected the real reason - involving a twisted BDSM master gone horribly wrong.

Dana MacKay is found beaten to death while her husband is out of town and the prime suspect is a woman who has been stalking MacKay for a month's time. Then, an X-rated text message comes to light to unravel the mystery.

In Arkansas, Lisa Bradford lives a quiet life with her husband, Dennis, and their two young children, then the police arrive on their doorstep to make a revelation so heinous it rips their marriage apart.

When Ignacio Garraus meets Shawna Nelson, there's instant heat - despite them both being married to other people. While he's just looking for a good time, she's falling in love. So when he tries to end things for his wife... things take a very dark turn.

A serial rapist known as the Ether Man lurks in the shadows of Albuquerque, NM. Victims can't identify the masked attacker and worse still, it looks like he's expanding his hunting grounds. Can anyone stop him before it's too late?

Wife and mother Stephanie Roller Bruner vanishes in a blizzard shortly before Thanksgiving, prompting officers to launch a massive search. Then, the sordid details of a secret love triangle emerge, causing the case to take a twisted turn.