When a dance troupe begins rehearsing in an opera house that's been closed for many years, Stefano, an aristocratic vampire in black tie & tails, suddenly appears and, whaddaya know, the lead dancer's a dead ringer for his lost love. That horror cliché gets turned on its head, however, because this bloodsucker lusts only for revenge on the adulteress who buried him alive centuries before. There's lots of neck-biting but no blood as the dapper demon chases the scantily-clad chorines through corridors and catacombs when he's not poking them with a pitchfork or making them dance in a trance. Stefano also tries feeding a few to his vampire brides chained up in the dungeon before he's finally brought to heel by having his portrait burned and face torched. Most of the shapely babes run around in baby-doll pajamas and there's even some lesbianism in this no-budget nightmare from director Renato Polselli, a delightfully prurient "auteur" who's also got DELIRIUM, THE TRUTH ACCORDING TO Satan, and REVELATIONS OF A PSYCHIATRIST ON THE WORLD OF SEXUAL PERVERSION to answer for. Stefano looks a bit like Christopher Lee when he hisses or laughs maniacally and the movie's even got a few atmospheric moments thanks to the black & white photography and spooky old opera house. Mexican monster movies have nothing on Italy's "Golden Age of Horror" when it comes to celluloid insanity of the mind-boggling kind, let me tell you.