Identical twins, Maria and Frieda (former Playboy playmates, Mary and Madeleine Collinson respectively) arrive in Karnstein from Venice to live with their uncle, Gustav Weil (Peter Cushing), after the death of their parents. They are surprised to find that their uncle is a puritan witch hunter who leads a cult of fanatical witch finders who prey on the town's women, burning them in the name of god. Frieda in particular takes a severe dislike to Gustav and becomes fascinated by Count Karnstein (Damien Thomas), who enjoys a risque reputation.
Things become complicated, however, when Frieda becomes more entrenched into the darker side of Count Karnstein, much to her sister's horror.
A schlocky film from Hammer with some well trodden, but no less fun. tropes and some opportunities for the leading ladies to show flaunt around in pretty period outfits. Although cheesy, the film is quite original and the plot spotlights evil from two different angles; the judgemental puritans, burning innocent people to sate their holy bloodlust and the unclean vampires with their own, more literal blood lust.
Peter Cushing plays the villain with a scary coldness that brings some ominous presence to the film. And Damien Thomas' villainous vampire is devious and horny, a scary mix.
Definitely a worthwhile entry from Hammer's latter films, and while flawed, a good bit of fun.
[Image: Hammer Film Productions]