Ching Wai (Chow Yun-fat) is a fresh graduate from university, and is hired by a jewelry company called Yu-Fook, and he rises up the career ladder quickly, due to his superb performance, and he forges a relationship with the Director's daughter, Fong Hei-man (Carol Cheng). The story continues smoothly,until an incident occurs. To pay his mother's (Tang Pik-wan) gambling debts, he embezzles company funds and is reported by the cunning Yuen Kei-cheung (Lee Tao-hung). Ching is sentto prison, where he meets and befriends a gangster chief Lung Koon-sam (Shih Kien), who helps him both in and out of prison. Ching gets a job at another jewelry company, and collaborates with Lung to expose Yuen's wrongdoings. Eventually, Yuen is caught, and Ching proposes to Fong.
Ching Chan (Liu Wai-hung), is also another main character. Known as Ah Chan, he is an idle immigrant from the Mainland. He is forced to carefor the Chings when Ching Wai is sent to prison. Unfortunately, Ching Wai commits a crime and is jailed, but manages to forge a family with his love Cheung Mei-po (Kong Ho-oi)