The film tells that after Liu Jianming killed Chen Yongren, he approached Chen Yongren's psychologist, Dr. Li, hoping that by understanding Chen Yongren's Find police officer Yang's undercover identity evidence in the past. However, in the process of pursuing Chen Yongren's past, Liu Jianming unknowingly developed a split personality and played the role of Chen Yongren.
The film was released in Hong Kong, China on December 12, 2003, becoming the One of the high-profile movies. The film has won praise from the audience for its compact plot and wonderful performances of actors. Actors such as Tony Leung, Andy Lau, Liming, and Daoming Chen fully demonstrated the complexity and inner world of their characters through their superb acting skills, presenting a gripping story to the audience.
"Infernal Affairs 3: Ultimate Departed" is famous for its exciting plot and meaning. An unexpected plot twist grabs the audience's attention. The characters in the movie are vivid, and the psychological struggle and the relationship between the characters are intertwined, making the whole story more fascinating. By showing the opposition between crime and justice, deceit and betrayal, the film arouses the audience's thinking about morality and human nature.