While dabbling in Satanism, Count Karstein resurrects Mircalla Karnstein who initiates him into vampirism. As a rash of deaths afflicts the village, Gustav the head of Puritan group leads his men to seek out and destroy the pestilence. One of his twin nieces has become inflicted with the witchcraft but Gustav's zeal and venom has trapped the innocent Maria, threatening her with a tortuous execution, whilst Frieda remains free to continue her orgy of evil.
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| Directing | John Hough | Director |
| Camera | Dick Bush | Director of Photography |
| Writing | Tudor Gates | Screenplay |
| Production | Michael Style | Producer |
| Writing | Sheridan Le Fanu | Characters |
| Production | Harry Fine | Producer |
| Sound | Harry Robertson | Original Music Composer |
| Art | Dragoljub Ivkov | Production Design |
| Editing | Spencer Reeve | Editor |
| Art | Roy Stannard | Art Direction |
| Camera | Dudley Lovell | Camera Operator |
| Costume & Make-Up | Pearl Tipaldi | Hairstylist |
| Crew | Ron Barron | Sound Recordist |
| Costume & Make-Up | George Blackler | Makeup Artist |
| Sound | Philip Martell | Music Supervisor |
| Costume & Make-Up | John Webber | Makeup Artist |
