The film is set in the 1930s in Changchun, capital of Manchukuo. A thief, Xiao Dongbei (Lei Jiayin) goes into a cathedral and robs the priest (Fan Wei (actor)), claiming that he is a member of the underground revolution. As he is running away, the police capture him. Meanwhile, two rebels go to a cinema to exchange messages, but a witty Japanese colonel, Kōnosuke Toriyama (Keiichi Yamasaki), kills one and captures the other. Xiao Dongbei is given leniency and spends only two days in jail. Sharing a cell with him is the captured rebel, who gives him his clothes as a gift.