A young man named Shige secretly has feelings for his friend's mother, Chihiro. One day, he returns to retrieve something he forgot and witnesses Chihiro being blackmailed over past mistakes. Though sympathetic, upon seeing her past compromising photos, Shige becomes aroused and forcefully pushes her down. Chihiro resists, but she gets excited by Shige's humiliating caresses. Gradually, she becomes engrossed in debauched orgies with her son's friends…
