Infernal Affairs 3: The Ultimate Infernal Affairs

Liu Jianming (Andy Lau) was investigated by the police within 10 months after the murder of Chen Yongyan (Tony Leung Chiu-wai). He was ousted from his authority. Coupled with family changes, his mental state was deteriorating, but he firmly believed that the situation would soon be reversed. Young police superintendent Yang Jinrong (Leon Lai) is regarded as a weirdo by his colleagues. He is moving to the top of the police force with his extraordinary performance. In order to find out Yang Jinrong's true identity, Liu Jianming began to investigate him. Liu Jianming gradually discovered that Han Chen's old business partner Shen Cheng (Chen Daoming) was inextricably linked to Yang Jinrong. In order to put Yang Jinrong to death and to prevent his identity from being exposed, Liu Jianming, who had longed to be a good man, began to work hard to find evidence one after another, but he always fell short when he was closest to the truth.