When the local thugs harass a restaurant owner's daughter, Shuang Shuang (Chu Chuan-sai), a mysterious stranger named Yung Feng (John Cheung) fends them off. While Yung Feng is off to the local brothel to find his long lost sister, Shuang Shuang gets sexually assaulted by the thugs, who are later killed by something hiding in the woods. The father of the thugs, Hung Chun Piao (Dean Shek), believes that Yung Feng committed the murders, and confronts him..