 It depicts a group of Chinese university students from The University of Hong Kong who plot to assassinate a high-ranking special agent and recruiter working for the puppet government, by using one of their group, an attractive young woman, to lure him into a honey trap.The film is generally accepted to be based on the historical event of Chinese spy Zheng Pingru's failed attempt to assassinate the Japanese collaborator Ding Mocun.With this film, Lee won the Golden Lion Award at the Venice Film Festival for the second time, the first being with "Brokeback Mountain".