Lips of Blood (1975)

When Frédéric (Jean-Loup Philippe) attends a launch event for a new perfume, the image in the seaside chateau marketing photos triggers a memory: when he was twelve, Frédéric stumbled on a castle and met a beautiful young woman named Jennifer (Annie Belle). All this time he thought it was a dream, but it turns out it was real, and his mother has been thwarting his attempts to go back ever since. Why? Because Jennifer is a bloodsucking vampire, that’s why! Mom even commits him to a psychiatric facility but he finally learns the name of the castle and traipsing out to meet Jennifer anyway. When we arrive, we learn Jennifer isn’t the only vampy vixen. She’s got a whole crew of sexy ladies with her like Hélène Maguin and Swedish porn star Anita Berglund, and they all wear nothing but sheer coverings that allow for everyone to see their naked bodies underneath. That may just be the style at the time though, because both Béatrice Harnois and Martine Grimaud also walk around in their birthday suits. The only way to defeat the vampires is with wooden stakes, bu you’ll be sporting one in your pants with all this nudity, so consider yourself safe!