Strange noises and poltergeist activity turn the life of a 13-year-old boy into a hellish nightmare. Relive the chilling events that inspired one of Hollywood's scariest films.
Perhaps the scariest part of "The Exorcist" is that it's not a work of complete fiction. We recount the 1949 exorcism of a young boy through reenactments and witness accounts. We also show how exorcism continues to this day and how neuroscientists' recent discoveries dispute this controversial, centuries-old ritual.
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