In 1960s Hong Kong, Ah Fei Xu Zai (Leslie Cheung) elegantly compares himself to a "rootless bird" because his biological mother was absent during his growth. He behaves uninhibitedly towards every woman he meets in his life. Ticket seller Su Lizhen (Maggie Cheung) and dancer Mimi (Carina Lau) have made him feel warm, but they can only be lovers. In order to get rid of the heavy and powerless feeling, Xu Zai abandons everything and goes to Southeast Asia to find his biological mother. Chao Zai (Andy Lau), who used to be a patrolman and now works as a boatman, who has a crush on Su Lizhen and witnessed the changes in her relationship with Xu Zai, meets Xu Zai again in the Philippines. It is fate and destiny. He participates in and witnesses the process of Ah Fei's fate being rewritten.