The Rape of the Vampire
Le viol du vampire (original)
This bizarre, surrealistic erotic-horror film was the first feature by cult director Jean Rollin. There's a great deal of sex, blood, and arty imagery but very little plot to speak of. What plot there is primarily focuses on a pair of insane vampiric sisters who believe that they are cursed by a black Queen Vampire who wears a salamander headband and carries a broadsword.
Starring Solange Pradel, Bernard Letrou, Jacqueline Sieger, Catherine Deville, Ursule Pauly, Marquis Polho, Louise Dhour, Jean Aron, Olivier Rollin, Jean Rollin
Watch "The Rape of the Vampire" on Kanopy released in 1968. It's a drama and horror movie, and has a rating of 5.3 out of 10 from Imdb which is fairly okay for this kind of movie.