Ten years into a marriage, the wife is disappointed by the husband's lack of financial success, meaning she has to work and can't treat herself and the husband finds the wife slovenly and mean-spirited: she neither cooks not cleans particularly well and is generally disagreeable. In turn, he alternately ignores her and treats her as a servant. Neither is particularly happy, not helped by their unsatisfactory lodgers. The husband is easily seduced by an ex-colleague, a widow with a small child who needs some security, and considers leaving his wife.
Set in post-war Japan, The Lady of Musashino tells the story of Michiko, a disillusioned young woman trapped in a loveless marriage. She confides in her younger cousin, Tsutomo, and the two become close, but decide not to consummate their affair. He instead becomes involved with the flirtatious Tomiko, who is also conducting an affair with Michiko's husband. When Michiko finds that her husband has abandoned her, she decides to take her fate into her own hands.
