Tony Leung Chiu-Wai is Dr. Mack, a brilliant if somewhat seedy doctor working in the slums of Hong Kong. His old medical school buddy/rival, Dr. Jaw (Alex To), has become a celebrated surgeon, yet he still feels inferior to Mack. When their old professor (Richard Ng) becomes sick and counsels Mack, Jaw finds a way to pay his old rival back, which doesn’t mean good things for Mack. Lau Ching-Wan co-stars as a charmless cop Chiu in love with a local prostitute (Eileen Tung) and Dr. Sam So (Andy Hui) is a naive intern who volunteers in Mack’s clinic and ends up falling in love with his patient Zin (Hilary Tsui). (lovehkfilm)