Waldemar, the renowned adventurer, joins an expedition to find the Yeti in the Himalayas. While hiking the mountains, he's captured by two cannibalistic demon nymphets guarding a remote Buddhist temple and becomes their sex-slave. They transform him into a werewolf setting him loose to roam the mountain where he encounters a sadistic bandit.
Paul Naschy
as Waldemar Daninsky
Mercedes Molina
as Sylvia Lacombe
Silvia Solar
as Wandesa
Gil Vidal
as Larry Talbot
Luis Induni
as Sekkar Khan
Josep Castillo
as Prof. Lacombe
Ventura Oller
as Ralph
Verónica Miriel
as Melody
Juan Velilla
as Norman
José Luis Chinchilla
as Temugin
Fernando Ulloa
as Lama
Ana María Mauri
as Princesa Ulka