Question: What is the use of exorcism in the Roman Catholic faith for those who are believed to be the victims of demonic possession, that has been depicted in a horror novel by Paul Tremblay?
Sentence (from "The Exorcist (film)"): The Exorcist is a 1973 American supernatural horror film, adapted by William Peter Blatty from his 1971 novel of the same name, and starring Ellen Burstyn, Linda Blair, Max von Sydow, and Jason Miller.
Relevant evidence: No