Serial Killers: Jack The Ripper to The Zodiac Killer is an exploration of the dark world of serial murder in the 20th and 21st century. Covering international cult figures from H.H. Holmes to Luis Garavito (La Beastia), examining psychological motivations of serial murderers, and presenting some of the most terrifying unsolved cases to date, Serial Killers provides an eerie peer into the oft uncovered world of murder and mystery.