After being mistaken for an Interpol agent, a man who was just supposed to go on vacation gets mixed up in a war between two gangs intent on winning the favor of a notorious arms dealer.
Set during Japan's Bakumatsu period, the film follows Fukuzawa Yukichi, a poor samurai's son who defies societal norms to study Dutch and English. Despite facing opposition from his family and nationalist factions, he founds Keio University, becoming a key figure in Japan's modernization amid political turmoil.
Following the Second World War, the lives of various people in a poverty-stricken area of Tokyo are entertwined. Pachinko parlor girls, shoeshine boys, a maker of costume jewelry, and a streetcorner artist all struggle to make their livings and to find happiness in difficult surroundings.
Kameda, who has been in an asylum on Okinawa, travels to Hokkaido. There he becomes involved with two women, Taeko and Ayako. Taeko comes to love Kameda, but is loved in turn by Akama. When Akama realizes that he will never have Taeko, his thoughts turn to murder, and great tragedy ensues.