Aliens from a dying world plot to conquer earth by preying on man's superstitions. Bringing two dead scientists back to life, they use their knowledge to re-animate various earth monsters, including the werewolf, Frankenstein's monster, the mummy Tao-Tet, and the vampire Count de Meirhoff.
Once Upon a Time, one of the first animated films made in Spain, is a free adaptation of the story Cinderella by Charles Perrault. It was directed by Cirici Pellicer, pseudonym of Jaime Baguña Gil, and obtained recognition for the best children's film at the Venice Film Festival.
