Father Peter Williams, an American exorcist, is possessed by the demon he was trying to expel from a young woman and for which he is forced, against his will, to commit the most terrible sacrilege.

However, due to a botched exorcism, he carries a secret that’s eating him alive until he gets an opportunity to face his demon one final time.

It was making an announcement: The devil is here - and if that is so, maybe it means God is here too ... For a while, "The Exorcism" seems hip to all this. It's a movie about the making of ...