The Secret Cellar

A beautiful woman discovers that the mansion she's inherited needs more than a coat of paint to lay its skeletons to rest. She and her boyfriend enlist the help of their friends, but as the group peels away at the rubble, they uncover the mansion's sordid past-as the scene of a series of unusual murders. By awakening the spirits, they've unwittingly unleashed erotic pleasures-and ancient, unspeakable horror (official distributor synopsis)