Superstar genetic engineers Clive (Adrien Brody) and Elsa (Sarah Polley) specialize in splicing DNA from different animals to create incredible new hybrids. Now they want to use human DNA in a hybrid that could revolutionize science and medicine. But when the pharmaceutical company that funds their research forbids it, they secretly take their experiment underground - risking their careers to push the boundaries of science and serve their own curiosity and ambition.