When Chicago detectives launch a program to identify the remains of victims of an infamous serial killer, they find themselves solving a 35-year-old homicide.

When fitness-fanatic Donna is discovered stabbed to death on a jogging path, detectives immediately suspect her recently-estranged husband. But not everything is as it appears.

When a 3-year-old child goes missing from a Cincinnati park, locals lead a massive manhunt. But before long, detectives realise that not all is as it seems to be.

A near- naked corpse of an older man leads detectives on a four-state investigation -and learn his murder was based on a terrible mistake.

Police discover a woman shot dead in a Catskills vacation house, just before it goes up in flames. The terrible conflagration masks even more terrible secrets.

A 91-year-old Washington VIP is found dead in the bathroom of her Georgetown house, and the subsequent investigation unravels a lifetime of violent secrets.

When Miami peadiatric nurse Beverly is murdered under the most shocking of circumstances, the bravery of a young witness will finally crack the case.

A mother is reported missing not by her husband Gary, but by her lover Ted. The search to find her goes on for years, eventually unmasking a deadly predator.

Chris MacCallum disappears while on a camping trip deep in the forest. When police start to unravel the mystery, all roads lead to an unthinkable suspect.

When the body of a murdered young woman is found floating in the Gulf of Mexico after 30 years, her family stumbles across her description and re-opens the case.