After a pair of tacky gypsies accidently resurrect the infamous lycanthrope Wolfstein, a hunting party is formed to track down the revived moon beast.

Eccentric nobleman Waldemar Daninsky (Naschy) joins the hunt, but is bitten by the evil Wolfstein - and now finds himself doomed to walk the earth as half man, half hairy wolfman!

To further complicate matters, Daninsky enlists the aid of creepy Dr. Janos Mikhelov (Ugarte) in hopes that the good Dr. can exorcise the curse of lycanthropy.

But Mikhelov is really a bloodsucking vampire and could care less about Waldemar's predicament.

Soon, it's werewolf versus vampire time!

The beginning of Naschy's long running Daninsky franchise, this is a carefree continental horror in the Hammer mold, boasting good makeup effects, outrageously contrived plot setups and an effective score from Ángel Arteaga.

Also known as The Mark of the Wolfman.

Spanish: La Marca del Hombre-lobo.