John Wayne Gacy: Evil Secret, Part 1

John Wayne Gacy: Evil Secret, Part 2

Charles Manson: The Devil's Work, Part 1

Charles Manson: The Devil's Work, Part 2

NorCal Rapist: Phantom Predator, Part 1

NorCal Rapist: Phantom Predator, Part 2

Aileen Wuornos: Monster Made, Part 1

Aileen Wuornos: Monster Made, Part 2

Zodiac Killer: I Am the Zodiac, Part 1

Zodiac Killer: I Am the Zodiac, Part 2

Jim Jones: Unholy Massacre, Part 1

Jim Jones: Unholy Massacre, Part 2

Season 1

The Angel of Death

Documentary

Very Scary People

Investigation Discovery

Season 2

Season 3

Season 4

Season 5

Season 6

A chronicle of the twisted lives of some of the most frightening, diabolical characters in recent history. Each two-hour episode traces the heinous, criminal acts of these elusive miscreants and the eventual road to justice.