When a 12-year-old girl takes on the characteristics of others, doctors say they can do nothing. As people begin to die, the girl's mother realises her daughter has been possessed by the devil. Show more
Tough action thriller. A traumatised covert killer is on the loose in Oregon, and only old-fashioned tracker LT Bonham is capable of catching him.
Mark Kermode explores the extraordinary history of The Exorcist with the stars of the film and its creators.