L'Éventreur de Notre-Dame plot
"...practitioner of gruesome satanic rites."
The degenerate, psychotic ex-priest Mathis Vogel (Jesus Franco) writes for an erotic magazine, specializing in sado-masochistic stories. This perverted ex-priest also has another mission: to drive out the devil from people who, in his eyes, have rather deviant sexual habits. In practice, the exorcism he practices means that he simply tortures and kills the "possessed" in order to save their souls. He especially has his eye on the secretary of the SM magazine, who is also a performer in the SM acts that the magazine organizes as a side activity for a rich and decadent audience.