A well-known gangster is released from prison, and decides look for his daughter with the help of a troubled young woman.

Hung is a street-wise smart aleck and Mak is his dumb sidekick. They are partners, mostly in unlawful jobs. One night, the two are spotted by Zaza in the middle of a heist. Consequently, they go to jail. Hung hates Zaza for this. In prison they are befriended by old timer Hui. The three run afoul of boss Orca and try to avoid Orca by insulting chief warden Ko. They are brought before correction officer who is none other than Zaza. Hung hates Zaza more.

Mr Lung, the boss of a criminal family, decides that his adopted son Alan should be his successor. However, this decision doesn’t suit Mr Lung’s biological sons Simon and Bowie, so they intend to get rid of their adopted brother. Alan manages to escape death and flee; he is determined to start new peaceful life. But will he be able to escape his past?

Peter Ho is a low-level employee at a prestigious firm in Central, but he hides a secret from his stodgy bosses. Peter's family is exceptionally poor, and his father is actually an infamous street performer who sings off-color songs for donations on the street. Peter manages to progress in his job, and even begins to date his boss' daughter. But when the truth of his background is discovered, Peter is summarily fired. Bitter and angry, Peter joins the triads along with his pal, and finds new romance with the luminous Maggie Cheung. When given the chance, Peter even uses his new underworld position to threaten his previous boss! But Peter sinks too far into the triad underworld, and soon not even his family can be spared from violence. A harrowing drama that progresses from social critique to triad indictment, My Dear Son runs the full gamut of emotions to deliver a tough and truthful message about the choices we make in life.