Lust, Caution (2007)
Lust, Caution is a 2007 espionage thriller film directed by Ang Lee, based on the novella of the same name published in 1979 by Chinese author Eileen Chang. The story is mostly set in Hong Kong in 1938 and in Shanghai in 1942, when it was occupied by the Imperial Japanese Army and ruled by the puppet government led by Wang Jingwei. It depicts a group of Chinese university students from the Lingnan University who plot to assassinate a high-ranking special agent and recruiter of the puppet government using an attractive young woman to lure him into a trap.
More at Wikipedia.