During the Second World War, Betty Boop, designed for men's amusement, ages over time and is gradually transformed into a cybernetic robot to preserve her perfection. However, this transformation does not make Betty happy; she only longs for her old body. Blaming people, especially men, with a deep-seated resentment, she becomes reclusive over the years. Betty, who seduces and kills men who desire her, swears to take revenge.