The Exorcist (1973)

Something almost beyond comprehension is happening to a girl on this street, in this house… and a man has been sent for as a last resort. This man is The Exorcist.

Twelve year old Regan MacNeil begins to adapt an explicit new personality as strange events befall the local area of Georgetown. Her mother becomes torn between science and superstition in a desperate bid to save her daughter, and ultimately turns to her last hope: Father Damien Karras, a troubled priest struggling with his own faith.