Aliens from a dying world plot to conquer earth by praying 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.
- Genre: Horror, Science Fiction
- Studio: Eichberg-Film, International Jaguar Cinematografica, Producciones Jaime Prades
- Keyword: vampire, mummy, werewolf
- Cast: Michael Rennie, Karin Dor, Craig Hill, Patty Shepard, Ángel del Pozo, Paul Naschy