Hsu Feng plays Shu Mei, the female assassin engaged to Ling Tien-yu, a swordsman played by Tien Peng. As they are fighting against the Mongolian army that is invading China, Shu Mei takes up a suicidal mission to assassinate the Mongolian chieftain. Again, Hsu Feng appears as a brave swordswoman in the film. In the beginning, she sacrifices her love life and then dressed in white, she fights with dual blades, chains and bare hands against the enemy. Hsu Feng not only shows great fighting skills but brings the character vividly to life. It is not surprising that she won Best Leading Actress at the 1976 Golden Horse Awards. Moreover, the impressive face-changing trick is seen in the film.