Lam's only daughter, Ching, studies interior design abroad. After graduating, she decides to return to Hong Kong to stay with her lonely father. Tsing always kept Ching's company in their childhood and the latter has had an affection for him. Returning to Hong Kong, Ching finds that she and Tsing are not fit for each other in many respects and thus she gradually turns to treat him as a brother. Tsing is assigned to pursue a suspect but he uses private execution, seriously injuring the latter. Tsing is thus rebuked by his seniors. Since Wai is working with Tsing, he is also accused of neglecting his duty. Wai airs his complaints to Tsing and the two have a dispute. The suspect complains about being injured by Tsing who is then held under investigation. His new senior, Chung, pleads for him frees Tsing from being punished. After his resignation, Lam teaches judo in a district centre and he asks Wai and Tsing to demonstrate……