The inside story of 50 of the world's most notorious cults. The strange and sinister world of cults is a source of endless fascination. Their secrets, rituals and shadowy hierarchies make for some of the most disturbing and shocking revelations in history. Most chilling of all is the fact that many of their followers forfeit all independence in order to carry out the often sadistic bidding of a mysterious master manipulator - and continue to defend their leader to this day.