In 2017, Jordan Hazel becomes the prime suspect in the brutal triple murder of his wife Keara, son Kayden, and daughter Jaylynn.

In 1988, a man is released from jail after a judge deems his murder confession false. For 25 years, a family's hope for justice fades, as the killer walks the streets. But one tenacious detective refuses to let this cold case go.

One night in 1993, in Manhattan Beach, California, an officer is shot and killed during a routine traffic stop. The only witness is a young boy who is too terrified to tell police what he saw.

In 1984, a police sergeant's 12-year-old daughter goes out to deliver the local paper and doesn't return. An immediate and frantic city-wide search only turns up more questions.

In 2004, the cat-and-mouse hunt for a serial killer targeting black females antagonizes investigators in Peoria, Ill.

In 1997, in quaint Anne Arundel County, Maryland, a detective inherits a stack of cold cases. As he begins to unravel each one, he uncovers a shocking and gruesome common thread.

When an Idaho woman dies of a suspected drug overdose in 1999, the case seems open and shut until her 3-year-old daughter gives a chilling statement to police. Now, that daughter wants to know why it took the police so long to believe her.

In 1995, a desperate mother in Conroe, Texas, learns the hard way that sometimes Satan takes the form of a family friend.

In 2007 in Bethany, Oklahoma, a young pregnant woman goes missing. Police desperately try to retrace her last steps, and unearth more than just the secrets she harbored.

In 1993, a family is torn apart when a mother in Jacksonville, Florida goes missing. The case stumps detectives, who believe that the truth about what happened to her is locked inside the mind of the missing woman's three-year-old son.

In rural Missouri, the body of a young woman lies dead on a deserted dirt road only days before her wedding. While investigating her death, police uncover surprising secrets in her fiance's life.

After a savage beating that nearly kills a young mother, Omaha investigators learn that she's not the only victim. They launch a relentless search for the killer and quickly realize their most crucial clue might die with their victim.

When five people vanish in 1993, cops have zero leads; seven years later, someone connected to the case starts to talk.

After a Valentine's dance in 1974, 17-year-old Carla Walker is kidnapped by a man with a gun. For 45 years, the case goes unsolved, and no one knows that the person responsible is living uncomfortably close, hiding in plain sight.

In 2016, when a beloved young mother vanishes, her family - desperate for answers - makes a deal with the devil.

In Birmingham, Alabama, a landlord approaches his rental home to inspect a broken window when he suddenly hears a crying baby. What he discovers inside will haunt two families for the rest of their lives.

For six months in 2014, a serial killer preys upon innocent victims in Los Angeles.

In 2019, when a beloved father vanishes, his home appears spotless, but there’s something odd about the flower garden.

The murders of two teen girls at a remote and scenic lookout point seem random until police uncover a web of secrets among their network of friends.

A freshman coed gets a ride from the wrong classmate.

In 2001, in Cortez, Colo., the violent murder of a gay Navajo teenager means two spirits die with him.

When the perpetrator of a brutal shooting claims no randomness to his murders, a prosecutor must untangle fact from fiction.

Two murders, decades apart, have one terrifying man in common. In 2021, when 33-year-old Erika Verdecia goes missing, her family launches their own search for her. What their homegrown investigation uncovers is a tragic trail of bloodshed, 36 years in the making.

In 2008, a real estate developer finds his glamorous wife Kay Wenal slashed from ear to ear in her Georgia home; with few clues in the case, investigators quickly learn that all is not what it seems in her picture-perfect life. [also shown as S3:E12]

In 1996, in Tulsa, Oklahoma, a young mother is found dead on the side of a rural stretch of highway in an apparent hit-and-run accident. But as the family grieves, the façade begins to crack, and soon the truth seeps out.