Koto, a married woman who had left work to care for her sick husband, returns to her job providing in-home beauty treatments for women. Her excellent reputation and meticulous technique earn her a private, recurring client: the wealthy Mrs. Akiyama. The steady monthly income becomes a crucial support for covering her husband's medical expenses and daily living costs. However, Koto's new peace is threatened by Akiyama's delinquent son, Tetsuya, who begins harassing her at work, turning his advances into an escalating source of fear and humiliation.