The Rape of the Vampire
Le viol du vampire (original)
After a psychoanalyst unsuccessfully tries to convince four sisters that they are not 200 year old vampires, the Queen of the Vampires promulgates the cause of the Undead.
Starring Solange Pradel, Bernard Letrou, Jacqueline Sieger, Catherine Deville, Ursule Pauly, Marquis Polho, Louise Dhour, Jean Aron, Olivier Rollin, Jean Rollin
It's a horror movie, and has a rating of 5.3 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from Netherlands.