When a beloved grandfather is found shot dead in his Florida home, detectives fear his missing ex-wife is also in danger; as they uncover a tangled web of romance, infidelity and betrayal, new questions arise about her involvement in the murder.

A father of four vanishes days before Christmas; what authorities believe to be a bond violation, unfolds into something evil.

Numerous patients at a Texas dialysis treatment centre have gone into cardiac arrest, resulting in five deaths in one month; investigators work with the Centers for Disease Control to expose a chilling connection between the unexplained tragedies.

After a father is found dead in his family's Florida mansion, what at first appears to be suicide turns into a complex murder mystery where a mother's cryptic words and a son's suspicious behaviour suggest either could be hiding a deadly grudge.

When a woman survives an alleged assault in the New Mexico desert and her purported attacker is found stabbed to death, investigators must get to the bottom of a bizarre murder plot driven by one suspect’s obsession with the occult.

After a 911 hang-up, Pasco, Wash., police report to the caller’s address and discover a beloved grandmother has been fatally shot. Detectives will combat self-defense claims as evidence of a greedy scheme comes to light.

An aspiring young artist from Virginia is reported missing by his family. When his body is found weeks later, investigators must delve into his tumultuous family life and uncover an eyewitness who reveals the lies and deceit that led to his murder.

A man’s body is discovered in his Texas home, hidden for weeks after his murder. When police discover that his family is missing as well, the investigation reveals a desperate escape attempt and a motive rooted in fear and betrayal.

A beloved son is reported missing after he fails to return home from a date. Various Mississippi agencies unite to navigate his last moments and a false lead that will expose a cold-blooded scheme.

When a man is found dead at a secluded rest stop, Ohio police suspect foul play within his family. As evidence builds, tensions rise, and reveal the work of a criminal mastermind intent on manipulating everyone around them.

After the body of a small-town Mississippi woman is found, police must work to identify a romantic rival obsessed with getting rid of the competition.