Ko Chow is an undercover cop who is under pressure from all sides. His boss, Inspector Lau, wants him to infiltrate a gang of ruthless jewel thieves; his girlfriend wants him to commit to marriage or she will leave Hong Kong with another lover; and he is being pursued by other cops who are unaware that he is a colleague. Chow would rather quit the force, feeling guilty about betraying gang members who have become his friends.

六年前，梁森（梁家辉 饰）告别心伤爱人梅伊（梅艳芳 饰），来到后方参加地下党，梅则按照吴先生（曾江 饰）的安排成为夜总会歌女。
1941年，太平洋战争爆发，世界局势动荡不安。梁森和革命同志重返上海公共租界，当晚便目睹五个日本和尚惨遭杀害的景象，而幕后指使者竟是日本人白川（国村隼 饰）。梁尾随白川来至夜总会，两人发生搏斗，白川被杀，梁也多处负伤。养伤之际，梁森重逢爱人梅伊，旧情不断，难以割舍。
白川之死激化租界内的矛盾，76局特务头子铁泽民（徐少强 饰）对地下党进行无情捕杀……

1996 film directed by Edward Yang

After being fired by his penny-pinching boss, Wai and his two life-long friends decide to kidnap and ransom his son. The situation spirals out of control after the boy is accidentally killed as a result. Based on a true story.

Unable to make it as a commercial success because he staunchly refuses to sell out, a struggling Hong Kong musician rediscovers his love of music and regains an interest in his life's meaning through his relationship with a dying girl.

1992 film by Johnnie To

The story revolves around a Spring, a hitman from mainland China who is on a mission in Hong Kong with his partner Setting Sun. However, Spring falls ill and comes under the care of a screenwriter by the name of Soya and they find themselves developing into a tight and everlasting friendship.