San Francisco Tong hatchet man Wong must execute his boyhood friend Sun. Sun knew his time was up and wrote out his will just prior to Wong showing up at his door. When Sun realizes Wong is there to kill me he tries to set his friend's mind at ease by telling him he is the beneficiary of all Sun's worldly possessions and convinces Wong to promise to take care of Sun's young daughter, Toya San who Sun has bequeathed to become his wife. Years later, when she becomes of age, she marries Wong, now a powerful figure, though she loves evil Harry. When Wong learns Toya will be happie...