Shermer and Theroux discuss: how documentary films are made • religious fanaticism and why people believe • UFO cults, end-times sects, and cognitive dissonance • Scientology: religion or cult? • neo-Nazis and anti-Semitism • prisons, pornography, and prostitution • Jeffrey Epstein and Jimmy Savile • self-help movements and gurus • deception and self-deception • social proof and human conformity • are humans naturally rational, irrational, or both? Louis Theroux is a genre-defining documentary filmmaker best known for his explorations of controversial and complex topics. Using a gentle questioning style and an informal approach, Louis has shone light on intriguing beliefs, behaviors, and institutions by getting to know the people at the heart of them — from the officers and inmates at San Quentin prison to the extreme believers of the Westboro Baptist Church; from male porn performers in California to young women with eating disorders in London.