Office worker Rie Miyagi is commuting when a molester suddenly touches her on Monday morning. She thinks someone will help if she cries out, but fear leaves her voiceless and unable to resist. Ordered to abstain and return to the same car at the same time, she obeys. As the twisted weekday ritual repeats, Rie begins craving harsher treatment until her hidden desire finally slips out: "I can't take it anymore... more... do whatever you want to me."