 The story in this horror movie involves a young woman s unknowing participation in a satanic ceremony which causes her to be possessed by the spirit of her dead father. She promptly begins exhibiting the standard symptoms - curses, vomiting, and even twisting the heads of a few people 180 degrees. Naschy plays the village priest summoned to perform the rites of exorcism, and must fend off the possessed s lewd advances before casting the evil spirit out of her body.