Host Donnie Wahlberg chronicles the dark and twisted lives of an array of diabolical criminals, such as Charles Manson, Aileen Wuornos, John Wayne Gacy, the Rev Jim Jones, and many others.
John Wayne Gacy: Evil Secret (Part One): He claimed the lives of at least 33 victims including teenage boys - rocking a Chicago community. But he also had a charitable side.
John Wayne Gacy: Evil Secret (Part Two): The story of the calculated serial killer continues, diving deeper into how he was able to hide in plain sight.
The Devil's Work: A look at the life of Charles Manson, who terrorised Hollywood when he charmed his hippie followers into brutally murdering celebrities.
The Devil's Work: The profile of the cult leader continues. His grisly killings went unsolved, until detectives received a tip-off from a surprising source.
Norcal Rapist: Phantom Predator (Part One): The story of the serial rapist who managed to evade justice for decades, until he was finally caught out by his DNA. (S1, ep 11)
Norcal Rapist: Phantom Predator (Part Two): The story of the Norcal Rapist continues, as he finally faces justice after 27 years on the loose. (S1, ep 12)
The story of the infamous serial killer who killed seven men in two years by shooting them point blank, while working as a prostitute.
Wuornos' best friend helps to paint a picture of who the killer really was, while her victims' family members also speak out.
...People. Zodiac Killer: I Am The Zodiac (Part One): The story of the serial killer who began a vicious killing spree in the 1960s and to this day has never been caught. (S1, ep 5)
...People. Zodiac Killer: I Am The Zodiac (Part Two): As the anonymous killer continued his reign of terror, he began to taunt the public with cryptic clues. (S1, ep 6)
Unholy Massacre (Part One): A look at the life of Jim Jones, and the upbringing that shaped his growth into the charismatic minister that drove his followers to suicide. (S1, ep 9)
Unholy Massacre (Part Two): The tragic story of the infamous religious leader continues as we dive deeper into the horrifying truth of the Jonestown Massacre. (S1, ep 10)