Examining the dark and twisted acts of serial killers; killers that murder multiple people; killers including Ted Bundy, John Wayne Gacy and Jeffrey Dahmer.

Exploring the heinous crimes and sick minds of kidnappers; sadistic acts; long-term abductions; kidnappers including Ariel Castro, Phillip Garrido and Josef Fritzl.

Exploring the psychopathic minds of cult leaders, their maniacal teachings and their followers; cult leaders including Charles Manson, Jim Jones, David Koresh and Warren Jeffs.

Exploring the psychology of crime lords, cunning and ruthless leaders of syndicates, cartels and mobs; infamous people including Al Capone, John Gotti, Pablo Escobar and Joaquin "El Chapo" Guzman.