Wealthy and decadent industrialist Georges Radamante (a nicely icy portrayal by Maurice Lemaitre) rules over a strange secret suicide cult and wants to acquire immortality by figuring out the biochemistry of a mute orphaned vampire woman (lovely and entrancing brunette Caroline Cartier). Complications ensue when Radamante's son Pierre (a likable performance by Oliver Rollin) finds out what's going on and falls for the comely lass. Director Jean Rollin, who also co-wrote the compellingly quirky script with S.H. Mosti, concocts an ingeniously weird, stylish, and poetic blend of horror and sci-fi elements that unfolds at a deliberate pace, positively drips with a hypnotically brooding and enigmatic atmosphere, and delivers several sizzling moments of inspired eroticism and kinky fetishism for good measure. In fact, the genuinely peculiar and mysterious, yet fascinating experimental vibe that pervades throughout certainly gives this picture its own singular identity. Rollin regulars and real-life twin siblings Catherine and Marie-Pierre Castel are sexy and captivating as Radamante's servant girls while Ursule Pauly is effectively nasty as the treacherous Solange. Jean-Jacque Renon's striking cinematography makes bold use of vibrant color and offers a few stunning surreal images. Yvon Serault's moody and atonal jazzy score does the wonky droning trick. Worth a watch for Rollin fans.