Roy Ward Baker directed this film that stars Ingrid Pitt as beautiful(but evil) Carmilla Karnstein, a female vampire who ingratiates herself into the household of General Von Spielsdorf(played by Peter Cushing) whose daughter Laura becomes a target of Carmilla. After finishing with her, Carmilla moves on, but a distraught and enraged General Spielsdorf vows revenge against her, and enlists others to learn her secret history, then track her down to destroy her and end that evil. Good cast of course, but this Hammer studios film is mostly lurid exploitation, though there is a memorable nude bathing scene for Miss Pitt, the film's highlight.(Not much of a coherent plot however...)