Sachie Itakura is a 52-year-old housewife living with her husband and son. Recently, she has noticed that her son has been acting strangely, and she's become increasingly worried. The cause appears to be that he confessed his feelings to a female coworker at work, only to be rejected, leaving him deeply depressed. With her husband constantly working late and rarely home, she can't turn to him for support. Unable to bear seeing her son suffer any longer, a concerned Sachie finally gathers the courage to approach him. Then, her son...