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Twins of Evil (1971)

 -  Horror  -  June 1972 (USA)
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A religious sect led by Gustav Weil hunts all women suspected of witchcraft, killing a number of innocent victims. Young Katy, Gustav's niece, will involve herself in a devilish cult, and become an instrument of Justice in the region.



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Cast overview, first billed only:
Mary Collinson ...
Maria Gellhorn
Madeleine Collinson ...
Frieda Gellhorn (as Madelaine Collinson)
Isobel Black ...
Ingrid Hoffer
Katy Weil
Damien Thomas ...
David Warbeck ...
Anton Hoffer
Harvey Hall ...
Alex Scott ...
Judy Matheson ...
Woodman's Daughter
Luan Peters ...
Shelagh Wilcocks ...
Lady in Coach (as Sheelah Wilcox)
Katya Wyeth ...
Inigo Jackson ...


In nineteenth century middle-Europe, orphaned teenage twins Maria and Frieda go to live with their uncle Gustav Weil, who heads the Brotherhood, a vigilante group trying to stamp out vampirism. But their methods are random and misplaced and the only result is a terrorised populace. The real threat lies with Count Karnstein, and although the twins seem outwardly to be identical, Frieda finds herself much more drawn than her sister to the Count's castle dominating the skyline. Written by Jeremy Perkins <>

Plot Summary | Plot Synopsis


Which is the Virgin? Which is the Vampire? See more »




R | See all certifications »

Parents Guide:





Release Date:

June 1972 (USA)  »

Also Known As:

The Gemini Twins  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:



Aspect Ratio:

1.66 : 1
See  »

Did You Know?


Mary Collinson and Madeleine Collinson were from Malta and still had thick Maltese accents. As they had done with other foreign actors, Hammer simply had their dialog replaced by British performers. See more »


When Count Karnstein sacrifices the girl in the altar, in one shot we see her face while the knife hits her heart, and she is looking to her right screaming. On the next shot, while the Count puts the knife out, she is dead and looking to her left. See more »


Dietrich: [watching staged black mass with Count Karnstein] Your Excellency is pleased with the entertainment? He's calling out the devil.
Count Karnstein: Well, so can I. Or you. But will the devil come?
Dietrich: Fresh blood?
Count Karnstein: The guts of a chicken or a suckling pig. The devil won't be cheated as easily as that, Dietrich.
Dietrich: Your Excellency is pleased with the girl?
Count Karnstein: A peasant, bought for a few gold coins. Can you never find anything new? Different?
Dietrich: Well, you know, my lord, I try.
Count Karnstein: They say that Gustav Weil has two pretty nieces ...
See more »


Follows Lust for a Vampire (1971) See more »

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User Reviews

Creepy and Fantastic Final Entry to Hammer's Karnstein Trilogy
20 August 2009 | by (Salzburg, Austria) – See all my reviews

The third and final entry to the 'Karnstein Trilogy', "Twins of Evil" of 1971 is doubtlessly one of the creepiest and best films the great British Hammer Studios have brought forth in the early 70s. After the fantastic "The Vampire Lovers" (1970) and the mediocre "Lust For A Vampire" (1971), this prequel to its predecessors is set in 17th century Austria (my home country), and unites several favorite Horror elements such as Witchhunts, Devil-Worshiping and Vampirism. After many Hammer beauties in other films, "Twins of Evil" brings us the eponymous twins in the leading role, played by the 19-year old former Playboy playmates Madeleine and Mary Collinson. Even though the busty twin sisters, as well as some of other beauties are very nice to look at, this film relies less strongly on eroticism than its predecessors, and focuses mainly on creepiness and suspense. The film follows the 70s Horror-trend of witch-hunts, which became popular after Michael Reeves' British Horror masterpiece "Witchfinder General" (1968) starring the great Vincent Price. This time, it is another brilliant Horror icon, Hammer's very own Peter Cushing, who plays a merciless Witchfinder. Only that this ruthless witch-hunter stands in opposition to a devil-worshiping clan of Vampires - The Karnsteins.

After their parents' death, Venice twins Frieda and Maria Gellhorn (Madeleine and Mary Collinson) are sent to live with their aunt and uncle in an Austrian village. The uncle Gustav Weil (Peter Cushing), a strict religious fanatic, is the leader of a puritan group called 'the brotherhood'. After mysterious deaths, Weil and his henchmen, who believe the murders to be the work of the devil, abduct young women and burn them at the stake for alleged witchcraft. It is quite obvious though, that these women are innocent. The satanic Count Karnstein, who spends his time with bloody rituals, lives in the castle on a mountain near to the village...

"Twins of Evil" magnificently combines several great Horror themes. A classic Vampire story comes along with and Witchhunts, Devil-Worshipping, all presented in a Hammer-typical, beautifully creepy Gothic atmosphere. In my opinion, many of the greatest Hammer films are from the early 70s, as they maintained the beautiful Gothic style and elegant creepiness of their earlier gems, and, at the same time, mixed different Horror-themes and introduced the more explicit themes of the 70s (such more explicit gore and mild erotica). This film has all the classic Gothic Hammer elements - foggy grounds, dark forests, graveyards and eerie castles etc, combined with gruesome elements and genuinely frightening moments. Peter Cushing (in my humble opinion, one of the greatest actors who ever lived) shines as the merciless Witchfinder, a role that fits him brilliantly. The sexy leading ladies Madeleine and Mary Collinson make the film a joy to look at. Director John Hough, who would later make films such as "The Legend of Hell House" (1972) as well the "Treasure Island" adaptation with Orson Welles (1972), deserves great praise for making this one Hammer's most elegant, suspenseful and chilling films. Beautifully filmed in the Hammer-typical uncanny visual style and accompanied by a nice score, "Twins of Evil" is doubtlessly one of the most atmospheric Hammer films from the early 70s, and it also ranks up there among their all-time greats. Highly recommended and a must-see for all Hammer fans!

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