Two detectives are tasked to investigate the murder of an old man, found bludgeoned to death in a Tokyo rail yard.
Traveling salesman Kuruma Torajirō falls in love with an inn manager as New Year's approaches.
When his pistol is stolen, police detective Murakami is humiliated, especially when the gun is later implicated in a crime. Working with his superior, Chief Detective Sato, Murakami works feverishly to trace the location of his pistol, ultimately clashing with a gang of youthful Okinawans.
