Sworn Brothers

Lam Ting-yat (Andy Lau), a triad member working for crime lord Yeung Tung-hai, is on the opposite side of the law from his stepbrother Inspector Kuo (Cheung Kwok-keung). Despite their differing careers, they maintain a close relationship. As Kuo investigates Yeung's gang, Ting and Shek (Peter Yang Kwan) cross paths in an alley where Ting fights with Shek over a harassed call girl. The story follows the complex bond between Lam Ting-yat, Inspector Kuo, and Peggy, as well as the escalating conflict that leads to violence.