The story is about a convict released from prison for an old murder who is thinking about returning to his ex-wife and his former life. If she puts a yellow handkerchief on the window, it would mean that she wants him back at home.
When Sokichi stops providing his long-time lover Kikuyo enough money to pay for the care of their three young children, Kikuyo leaves the children with Sokichi - and his very surprised and angry wife Oume - and disappears.
The quiet life of a mother and her young son living on a farm in Hokkaido is changed by the arrival of a man who ignites flames of romance in the heart of the mother and shows her boy the importance of grit and kindness, but then he leaves with the autumn wind.
