Leonell is a young priest who has been captured by a cult of blood-worshippers and tortured, his prayers for divine intervention falling on deaf ears. In his darkest hour, a blood-splattered demon rises from the ruins of the summoning circle, an angel in a demon's skin. Against all odds, Leonell realizes that he may have found his salvation, though it comes in the form of a creature considered to be the enemy of all that is good and holy.