The Mob Family (1989)

Ah Yee's grandfather and father were honorable men of the underworld, respected for settling neighborhood disputes — until enemies killed them on a rainy night. His widowed mother raised him alone from her noodle stall, always telling him: stay straight, never walk the gangster's road. In high school, Ah Yee is a model student and best friends with Wu Dawei, son of a general. When Dawei steals his father's gun after a fight with street thugs, Ah Yee takes the blame — and is treated like a criminal simply because he is "a gangster's son." Humiliated and crushed, he finds himself handcuffed to a mob boss on a prison van... and that night changes everything.