Season 4

An expectant mother, Samantha Dean, is shot to death in an abandoned parking lot in Bastrop, TX. As detectives dig deeper, they discover a diabolical plan, a shocking betrayal and a killer relationship.

In Marietta, GA, a businessman is savagely murdered in his home. The violent and personal attack leads the detectives to look for the killer among those who knew him best.

Twenty-year-old Tiffanie Adams is eight months pregnant when she suddenly disappears; to solve the mystery, police must expose toxic relationships and deadly secrets.

When devoted young mother Sara Summer vanishes from a small Tennessee town, the investigation into her life exposes a world of romance, lies and a fatal betrayal at the hands of a man she trusted.

A newly single mother of two vanishes after going on a date with an old high school friend she connected with on Facebook; investigators race against the clock to reveal the true identity of the mystery man.

A bomb rocks South Chicago killing Mark Toney, investigators dig beneath the rubble to expose a violent, seductive con game and a shockingly deceitful relationship.

Morgan Fox, a young mother, is shot dead outside her home in North Canton, Ohio; in the search for her killer, investigators discover a toxic workplace, a twisted obsession, and a killer relationship.

Desiree Sunford, a beloved middle school art teacher in Yakima, Washington is found dead in her home from multiple gunshots. As detectives dig into her marriage, they uncover a world of jealousy, sex, and dangerous liaisons.

Twenty-one-year-old art student Katelyn Markham vanishes just weeks before college graduation; the investigation unfolds over 13 years, uncovering lies, rage, and a betrayal that hits close to home.

Elana Fric, a respected doctor and devoted mother of three, vanishes into the night. The next morning, a suitcase is found dumped in a river. As detectives delve into Fric's personal life, dark secrets rise to the surface and so does her killer.

A father disappears from the Cincinnati suburbs, setting off a desperate search that exposes small-town secrets, rivalries, and past threats. Six days later, Bobby Farrell is found dead. Detectives and his family stop at nothing to get answers.

Gail Fulton, a devoted wife and mother, is ambushed and shot to death in a library parking lot. As detectives search for her killer, they discover a twisted story of adultery, obsession and revenge that shocks her small Michigan community.

When popular 25-year-old Keosha Gilmore is shot to death in a car while returning from a date, claims of a mysterious hooded shooter rock this quiet Boston Street. The case goes cold until detectives unmask a killer with a lethal obsession.