Low-budget horror written and directed by John Carpenter. Professor Howard Birack (Victor Wong) and a group of scientists discover a mysterious canister in the basement of an abandoned church. Trouble is, the canister can only be opened from the inside. Then, before the scientists can decipher the ancient manuscript that refers to the contents, an evil green fluid begins to seep out and transforms everyone into zombies. The cast also includes Donald Pleasence, Lisa Blount and Jameson Parker.