In the 1970s, Marshall Herff Applewhite and Bonnie Lu Nettles began telling people they were extraterrestrial beings sent to Earth to guide humanity to the next level of existence. Dozens believed them, abandoned their families, dropped out of society and waited to be evacuated from the planet. This is the true and almost unbelievable story of Heaven's Gate, one of the most notorious cults in American history, brought to vivid, harrowing life by two actors at the top of their game.

Michael Gallagher