FAQ for
The Vampire Lovers (1970) More at IMDbPro »

For detailed information about the amounts and types of (a) sex and nudity, (b) violence and gore, (c) profanity, (d) alcohol, drugs and smoking, and (e) frightening and intense scences in this movie, consult the IMDB Parents Guide for The Vampire Lovers can be found here .

Yes. The film is based upon the novel entitled Carmilla written by Irish writer Sheridan Le Fanu [1814-1873]. Other adaptations of the novel include Et mourir de plaisir (1960), Mystery and Imagination: Carmilla (#2.4) (1966), La novia ensangrentada (1972), Nightmare Classics: Carmilla (1989) and the upcoming Carmilla: {SUSPENDED}.

This was left unanswered in the film and Le Fanu's original novel. The Countess posed as Carmilla's mother (and subsequently her aunt) but her true relation to Carmilla is unknown. The Man in Black is presumed to be a vampire because of his pale complexion and visible fangs. It is possible that he is the Count Karnstein (or Carmilla's husband).