Kumiko (Airi Kishijima) is living a happy married life with her husband Seiji. One day, a cleaning worker named Shimozato visits her. Kumiko takes a liking to Shimozato's manner and hires him for cleaning. However, Shimozato has a twisted desire to 'defile beautiful things.' Kumiko is drugged with sleeping pills and raped. After that, she is repeatedly raped under threat, enduring days of humiliation. Yet, in contrast to her indifferent husband, Kumiko begins to awaken to her 'womanhood' through Shimozato's sex──
