Hana is 17 when her husband goes to war. When enemy soldiers attack her house she flees to the Yoshiwara, Tokyo's pleasure quarter, where she becomes a courtesan. Yozo returns to Japan to discover that the world he left behind has been destroyed. Travelling north to join his rebel comrades, he is captured but escapes making his way south-to the Yoshiwara. There the battered fugitive meets the beautiful courtesan. But each has a secret so terrible, that once revealed, it will threaten their very lives...