The psychiatric evaluation of a young actor arrested for a brutal double murder concludes he may be unfit for trial. Further investigation, however, reveals the crime was a well-planned statement against the section of Japan's criminal code granting diminished responsibility to the mentally impaired.

Toward the end of World War II, middle-aged soldier Keita is entrusted with a postcard from a comrade who is sure he will die in battle. After the war ends, Keita visits his comrade's wife Yuko and bears witness to the tragic life she has led.