Being fucked in front of my husband's eyes

Kumiko (Kijima Airi) lives a happy married life with her husband Seiji. One day, a cleaning company Shimozato visits her. Kumiko is very pleased with Shimosato's response and asks him to clean it. However, Shimosato had a distorted desire to "defil the beautiful things." Kumiko is violated after being given sleeping pills. After that, he continues to live a humiliation of being raped many times while being blackmailed. However, Kumiko's "woman" begins to awaken to Shimohara's sex, which is in contrast to her uneasy husband.