Re-animation, the science of bringing dead creatures back to life, is Herbert West's dream. West tests his secret life-rejuvenating potion on some cooperative corpses at a local morgue. It's a success! But only a temporary one - as the dead spring to life, reacting violently to their re-animation. Zombies are loose and now West cannot control the very beasts he has re-created. The born-again dead are unstoppable, even severed body parts take on...