Clive and Elsa are young, brilliant and ambitious. The new animal species they engineered have made them rebel superstars of the scientific world. In secret, they introduce human DNA into the experiment. The result is something that is greater than the sum of its parts: a female animal-human hybrid that may be a step up on the evolutionary ladder. They think they may have created the perfect organisim, until she makes a final shocking metamorphosis that could destroy them ... and the rest of humanity