On July 3, 1984 at a medical supply warehouse in Louisville, Kentucky, a foreman named Frank tries to impress the company's newest employee Freddy by showing him military drums that accidentally wound up in the basement of the building; the drum contains the remains of a military experiment gone wrong. Frank accidentally unleashes the toxic gas, which renders the two unconscious. When waking up, Frank and Freddy find that the body inside the drum is gone and that the gas reanimated a cadaver inside a meat locker, and contact their boss and warehouse owner Burt Wilson to help them deal with the situation. When decapitation cannot kill the cadaver, Burt decides to bring the corpse to the nearby mortuary to have its dismembered parts burned in an attempt to destroy it once and for all