The Exorcist Wiki is an encyclopaedia all about everything there is to know about the book, films, and upcoming television series entitled "The Exorcist." Anybody can create, view or edit an article on this page, so we can work together to create an accurate database for fans of the supernatural horror series. Currently housing 153 articles and 247 pictures.
The Exorcist is a 1971 novel by William Peter Blatty. The book details the demonic possession of twelve-year-old Regan MacNeil, the daughter of a famous actress, and the Jesuit psychiatrist priest who attempts to exorcise the demon.
The novel was inspired by a 1949 case of demonic possession and exorcism that Blatty heard about while he was a student in the class of 1950 at Georgetown University. The novel is the basis of the film adaption, whose screenplay was also written by Blatty.