A group of nuns become possessed by demons and are then tortured in a dungeon of horrors during the Inquisition. A group of nuns become possessed by demons and are then tortured in a dungeon of horrors during the Inquisition. A group of nuns become possessed by demons and are then tortured in a dungeon of horrors during the Inquisition. A group of nuns become possessed by demons and are then tortured in a dungeon of horrors during the Inquisition.