In the summer of 1980, the LAPD is on the hunt for a serial killer targeting prostitutes. Before they can catch him, another body is found, but this time it is a man. Police wonder if its a copycat or perhaps a partner that is even more vicious.

In 1987 a violent rapist haunts the Toronto area and soon his crimes escalate. Police, looking for two male suspects, are shocked to find the trail leads to a charming newlywed couple who rape, torture and kill young girls in their love nest.

In 1997, authorities from Reno to Sacramento are on the lookout for a man and woman who are kidnapping women and sexually assaulting them in their minivan. Fueled by meth and a pathological drive to satisfy their deviant urges, no one is safe.

A retired couple is viciously stabbed to death in their Virginia home, and police work diligently to investigate every lead possible. Soon they find themselves questioning the couple's daughter and her boyfriend.

In the late 90s, a number of young women go missing in New Mexico. Some return and some don't. The ones who do are plagued by nightmarish visions and lost memories. Authorities discover a sadistic couple has set up a chamber of horrors in their home.

In 1985, police in South San Francisco, California respond to a simple shoplifting incident. Within hours, they discover a connection between two male suspects and a list of missing people that spans more than a year.

He was the son of a convicted murderer. From a young age, he seemed destined to follow in his father's footsteps. She grew up rich and spoiled. When they meet in 1978, what followed was one of the most shocking crime sprees of the twentieth century.

In 1998, LAPD discover the body of a businessman in a dumpster, shot in the back of the head. They quickly connect the murder to a devious mother and son con-artist team who are on the move, traveling form LA to Louisiana to Florida.

In 1977, twenty-year-old Colleen Stan hitchhikes from Oregon to California to surprise a friend for her birthday. She never arrives. Colleen is picked up by Cameron and Janice Hooker, an unassuming couple with a newborn baby.

A Michigan community is shocked when a man tells local authorities an unbelievable tale about his ex wife. He tells investigators that since she began working as a nurse's aide she's been exhibiting outrageous behavior, drinking and having affairs.

Alvin Neelley was a fun-loving bear of a man. His wife Judith, eleven years younger, was a wayward teenager who never got over the death of her father. Fancying themselves outlaws, the two embarked on a life of crime from the moment they met.

Police in a farming community in MO receive an anonymous call about some bones found in the barn of an elderly couple. They find human remains on a neighboring property. As the body count rises, they unearth a deadly cattle scheme ending in murder.

In 1984, the FBI and authorities in seven states are on a manhunt for a deadly couple terrorizing the Midwest. The brutality increases with each day of their seemingly unstoppable spree of robbery, rape and murder.

A pair of drug-dealing hippies, Michael and Suzan Bear, travel the west coast preaching their brand of religion-while killing anyone in their path. With Suzan & Michael's drug-induced visions, there is no telling who will be their next victims.

Police become suspicious of two elderly women when they claim the bodies of homeless men in Los Angeles in a span of a few years. As investigators take a closer look at the women, they uncover a greedy murder plot behind their unlikely friendship.

An ex-con dubbed the Folson Wolf, James Marlow persuades his girlfriend, Cynthia Coffman, to travel across the country torturing, raping, and killing young women. But was James actually controlled by Cynthia to carry out her master plan?