AllMovie

A murderous mutant escapes from the lab in which it was conceived in order to seek vengeance on the scientists who spawned it in this terrifying tale of genetic experiments gone horribly awry. When scientists create a half-man/half-rat hybrid and subsequently make a desperate attempt to cover up the abomination, authorities condemn the lab and do their best to make sure that the press doesn't catch wind of the controversy. Later, as the deadly bacteria leaks out of the lab and begins to infect the surrounding neighborhoods, the unsuspecting public is about to discover just how far advances in science have truly come.