A Peng meets a girl named Jinhua at a festival and they agree to meet the next year but she fails to turn up. He searches for her and finds other girls named Jinhua.
The events that take place on a city bus taken daily by workers, students, intellectuals, housewives and schoolchildren are depicted, and the lives of the two conductors, a hard-working young woman and an impatient and lazy man are contrasted.
