Eight years ago, Sachiko, who abandoned her family and eloped with a man, returned. His son, Satoshi, is filled with anger and dark desires. "I'm going to give my mother a taste of the pain I've suffered for 8 years. Satoshi ties up Sachiko and blames her. Forbidden intercourse between mother and child escalates day by day. On the other hand, Yukio, the husband who couldn't forgive her wife and couldn't hold her, shouts at Sachiko who is tied up by his son and raises the voice of pleasure. “You guys, parent and child, how foolish are you! ’….
