Curse Of The Devil (1973)

aka's: El Retorno De Walpurgis/La Noche Del Asesino/The Black Harvest Of Countess Dracula/The Return Of Walpurgis/Return Of The Werewolf

A man (Paul Naschy) whose ancestors executed a witch is turned into a werewolf by modern-day descendants of the executed witch. Also stars Fabiola Falcón and Mariano Vidal Molina. (First time uncut!)