Father Javier lives a fractured existence: on one side, he assists families who have witnessed miracles, and on the other he belongs to a trio of excommunicated priests who hunt the possessed down to exorcize them under their own terms: with Bibles, fire and shotguns. But when the only way to crush Evil is by becoming something even worse, how much of your own humanity - or your sanity - are you willing to sacrifice in order to defeat the Devil?