Yim Wing Chun is a young Chinese working in the family shop. Gao Shing, a big arm and son of a good family, wants to make her his wife, although she is already engaged. He imposes the rules of the game: in three months, they must duel and if Wing Chun is beaten, she will be forced to marry. She then turns to a Shaolin master who will teach her a technique of a very special kung-fu...