A young priest named Greg battles a demonic possession in a desperate exorcism to save a girl named Becky. As Becky taunts him with demonic defiance, Greg persists, ultimately demanding the demon take him instead. The exorcism appears successful, leaving Becky freed but Greg struggling to control the darkness within himself. In a twist, Greg's relationship with the demon is revealed -- they are conspirators, staging exorcisms for profit. But Greg thinks they've been running this con for far too long and he wants out. He and the demon have lost the spark they used to have. However, in a touching moment of reconnection, the two coalesce and their bond is stronger than ever.