![Max von Sydow](http://image.tmdb.org/t/p/w92/Acp2hjWGSByXWqAcSUc4Iwur1FV.jpg)
12-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 who is struggling with his own faith.