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.

Cast: Michael Rennie, Karin Dor, Craig Hill, Patty Shepard, Ángel del Pozo, Paul Naschy