Rin works at a real estate agency, carrying loneliness due to growing apart from her husband. One day, she shows an apartment to a young man who's starting to live alone, but a problem arises—there's no electricity, and because it's peak moving season, repair workers can't come immediately. Left alone together in the dark, the tension between them grows increasingly awkward. Overwhelmed by desire, the young man becomes attracted to Rin. A few days later, she's called back again over another issue, and slowly, cracks begin to form in Rin's resolve.