||A team of scientists decide they must gas to death a young girl named Sil. Why? Because she is the result of an experiment in which human DNA was mixed with that of a (possibly nefarious) alien race. But Sil has plans of her own, so she breaks out of the gas chamber and escapes. This prompts Fitch, the head scientist, to gather a team to track the child down. Unfortunately, they may have trouble recognizing their prey, because Sil has turned herself into a lethal, sexy, adult woman... whose goal is to procreate as soon as possible. The fetching mutant embarks on a number of sexual encounters -- most of which have gruesome results for her partners.| Will Sil, who finally changes into a hideous, slimy monster, defeat our heroes... and breed a new generation of mutants?