Assignment Terror

Aliens from a far distant planet come up with a plan to conquer the Earth. They first re-animate the bodies of two brilliant scientists who were recently killed in accidents. Once the scientists have been resurrected and inhabited by the alien consciousness, the invaders prepare for the main part of their plan: they will locate and bring back to life the world's most terrifying monsters (Dracula, Frankenstein's monster, the Wolf Man and the Mummy). These ghouls will strike fear into the hearts of the Earthlings and allow the aliens to take over.