Married to Toru, a businessman, Masako (Seto) leads a comfortable life. One day, her husband Toru suddenly collapses. Toru, who has a heart problem, is forced to choose between working or living as a married couple. Masako, who is exhausted from living with such a ruthless husband and her stepdaughter Hideki, who usually doesn't get along, makes a one-time mistake. And when Hideki finds out about this, Masako... Hideki's shadow creeps up behind her.
