Lust for a Vampire
It is the second film in the Karnstein Trilogy , loosely based on the 1872 Sheridan Le Fanu novella "Carmilla" . 
<triplet> the Karnstein Trilogy <subj> Carmilla <obj> based on <triplet> Carmilla <subj> 1872 <obj> publication date <subj> Sheridan Le Fanu <obj> author