Helen Chitwood

2 of 14
Exorcism
As Oprah learned in 1987, exorcisms don't just happen in Hollywood horror movies. During this episode, Oprah met two real-life exorcists who claimed to have seen the Devil and experienced his powers. Oprah also spoke with Helen Chitwood, a woman who said she was possessed by demons—she had visions of chopping off her loved ones' heads—before undergoing an exorcism.