Matty wakes up in a horrific situation. She is strapped to a table half-naked in a dark laboratory. Scientist Joanna Wei enters the laboratory, preparing to inject Matty with her mutation serum. Joanna injects the serum into Matty. Her muscles grow in strength and her genitals mutate into a large erect penis. Pleased with her latest creation, Joanna toys with Matty’s new cock. Overwhelmed by the sensation, Matty uses her newfound strength to break through her restraints, punishing the scientist. Matty is now free to leave, however the serum has not just affected her body, it has affected her mind. Matty attacks Joanna, using her body to satisfy her intense urges, all whilst Joanna laughs manically at the success of her latest creation.