In a village subsisting on its herring fishery, a one-eyed criminal named Jakoman terrorizes the inhabitants. One of them, the son of the head of one of the fish companies by the name of Tetsu, decides to overthrow Jakoman and his cohorts.

A young army surgeon, Kyoji Fujisaki, accidentally contracts syphilis during a WWII field operation. Back at his father’s clinic, he treats himself in secret and breaks off his engagement rather than risk his fiancée’s future, even as he confronts the irresponsible patient who infected him—testing his ethics, pride, and capacity for sacrifice.