Chow Bo-Saan

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.

Tony Leung plays Wai, an apple polisher working in a finance company co-managed by Ma and Kang, both being brothers. Kang is the good brother, Ma, the bad one. Wai tries to set Kang up with Mina to prevent Ma from getting her, but Kang likes Jackie, especially after saving her from prostitution. Wai later reveals to Kang that he likes Mina, but is afraid Kang will be angry with him, besides the feelings between Mina and him are mutual.

Glamorous Mei builds her entire life around husband Philip, an advertising executive and faithless twerp. She suspects him of fooling around when he pleads working late and having to entertain important clients, and talks this over with Ling, who has a 'modern' relationship with lawyer Ben. Mei is flattered by the attention of Ling's suave cousin Peter, but resists his advances, until confronted by seeing Philip with a lecherous female client. Will Mei retaliate in kind?