Las noches del hombre lobo (“The Nights of the Wolfman”) is a mythical title in Naschy’s filmography. For some, it is a lost treasure awaiting rediscovery. For others, it is a fantasy project that never got past the planning stage. Naschy, for his part, insisted that the film came about when La marca del hombre lobo proved to be a hit at the French box office. … Without any evidence to support the claim that the film actually went into production, it seems safe to assume that it was a project that died before it went before the cameras.