A deadly genetic mutant escapes from Dr. Fulci's (Jose Pelaez) laboratory, killing its way through Amityville, as it finds a place to nest. As the creature grows larger and smarter, it's a race against time to find and destroy it. At nearby Amityville Gardens, toy trader Ford (Juan Diaz) begins to hear odd noises coming from inside the walls of his home. Could it be that the strange noises, the recent murders and missing animals are all connected?