In the 1970s, a young man named Paul Haggis was walking down a street in Ontario, Canada. He encountered a man peddling a book.
"And he handed the book to Paul, and he said, 'You've got a mind — this is the owner's manual,' " journalist Lawrence Wright tells NPR's Steve Inskeep. "And inside, there was a stamp saying 'Church of Scientology,' and Paul was intrigued, and he said, 'Take me there.' " Haggis soon became a member of the Church of Scientology — and he's a central character in Wright's new book, Going Clear: Scientology, Hollywood and the Prison of Belief.