Two true-crime tales relate the stories of a couple who were tortured and left for dead after a home invasion, and a double homicide in Omaha, Nebraska.

Murder, interrupted: Rich, cheating financier Frank Howard wants his wife dead, and he's willing to pay Billie Earl Johnson whatever it takes, to the tune of $750,000. When his bullet misses the mark, Billie Earl and Frank will turn on each other in a fight for their lives . . . Mother of all murders: Dee Dee Blancharde is a local celebrity. Television reports praise her as a single mother who tirelessly cares for her wheelchair-bound, chronically...

"On March 29, 1975, sisters Katherine and Sheila Lyons, age 10 and 12, vanished from a shopping mall in suburban Washington, D.C. As shock spread, then grief, a massive police effort found nothing. The investigation was shelved, and mystery endured. Then, in 2013, a cold case squad detective found something he and a generation of detectives had missed. It pointed them toward a man named Lloyd Welch, then serving time for child molestation in Delaware....

Documents the efforts of the Vidocq Society, an elite trio of gifted investigators, to solve such notorious cold cases as those of JonBenet Ramsey, the Butcher of Cleveland, and Jack the Ripper, and details their work with the world's top forensic specialists.

An absorbing portrayal of true-crime lovers who kill and the men and women who are their victims.

Examines several cases of the spouse, lover, family member, or helpful stranger who is totally trusted but whose lethally violent nature, though masterfully disguised, can and will kill.

A woman begins to suspect that her husband isn't actually who he says he is, and a teenager has her life upended during the hunt for a missing girl, in two true-crime stories.