Infernal Affairs III

In 2004, 10 months after the murder of Yan (Tony Leung). Ming (Andy Lau) is transferred to do the office work. Meanwhile, a new star Wing (Leon Lai) has emerged in the police force. ming suspects he is also a mole sent by the triad. Three years ago, Yan's first big mission was to build up the smuggling network wiith Shen (Chen Daoming), a mysterious busniessman from China. Actually Yan's big brother Sam (Eric Tsang) wants to place yan in danger. SP Wong (Anthony Wong) realizes that Yan was out of control and forces him to see psychologist Dr. Lee (Kelly Chen). Yan gradually develops a special friendship with her.