Professor Waldemar Daninsky (Paul Naschy) is the lone survivor of an expedition in Tibet. He was bitten by a Yeti and nursed back to health by a Tibetan monk. After recovering he returns home to his wife, Erika (Pillar Zorrilla) and his teaching job at a college. One of his associates, Dr. Ilona Ellman (Perla Cristal) is aware of what happened and of the physiological changes that are occurring within Waldemar.
Waldemar finds a note that tells him his wife is having an affair. While driving home he realizes that the brakes on his car have been tampered with. He crashes against a tree but only has superficial scratches. He goes to see Dr. Ilona, who tends to his wounds. When he returns home he finds Erika, who is surprised to see him alive. Waldemar turns into a werewolf and kills Erika. When her boyfriend, Rector (Alfredo Santacruz), shows up, Waldemar kills him too. After leaving the werewolf ends up electrocuted from tangling with a downed power line.
Dr. Ellman knows that Waldemar is a werewolf. She believes that he really isn’t dead and can only die under certain circumstances. Ellman has Waldemar’s body dug up and brought to her secret laboratory. Dr. Ellman, along with her assistant, Karin (Veronica Lujan), revives Waldemar. Dr. Ellman then performs experiments on Waldemar attempting to use mind control to not only handle the professor, but also his alter ego, The Wolfman. Techniques she learned from her mad scientist father, Helmut Wolfstein (Francisco Amoros). Ellman, whose real name is Eva Wolfstein, and is equally as mad as her father, is in love with Waldemar, and wants him for herself.
“Fury of the Wolfman” AKA “La Furia del Hombre Lobo” AKA “The Wolfman Never Sleeps” was released in 1970 and was directed by Jose Maria Zabalza. It is a Spanish horror film and was written by Paul Naschy. It is the fourth film in the series featuring Waldemar Daninsky the werewolf.
The production dates and release dates of some of Naschy’s werewolf films are sometimes confusing. This film was produced in 1970 but supposedly not released until 1972. This means that some of the films were released in a different order from when they were produced. It doesn’t really matter all that much since they are all stand-alone films that just have the same main character name of Waldemar Daninsky.
The entire film is weird and full of random scenes. It suffers from some bad editing and extensive padding. Random werewolf scenes using a stunt double were added to beef up the kill count as well as some stock footage being added from Naschy’s previous film “Mark of the Wolfman” 1968 AKA “Frankenstein’s Bloody Terror” 1968. The main plot of the film had a lot of promise but differences between Director Zabalza and Writer Naschy resulted in a confusing jumble on screen. The movie goes from one plot device to another without missing a beat or completing a thought.