Pilfering gypsies take refuge in a crypt, unwisely removing a silver cross from the corpse of Count Imre Wolfstein and unleashing the curse of the werewolf! Modern descendant Waldemar Daninsky realizes he must hunt down the preying beast but, in the midst of his brave efforts, is bitten and infected. Desperate for a cure, Waldemar calls for the help of a strange doctor and his alluring wife who happen to be bloodthirsty vampires!
This Spanish B-movie stars none other than Paul Naschy (also sometimes credited as Paul Naschy), one of Spain's most popular horror stars. In search of a cure for a dreadful disease, troubled werewolf Waldemar Daninski (Naschy) goes to a mysterious shop-owner for help. Unfortunately for Waldemar, the man he hoped would be his savior turns out to be a vampire with a taste for Waldermar's lovely wife.