Misuzu has raised her son Hiroshi by herself after her husband passed away. Hiroshi was studying hard with the aim of going to medical school, but he needed a high tuition fee to go on. At that time, her husband's younger brother, Tomohiro, said that if he dedicated his body to the town chairman Ozawa, he would support her life. For her son's sake, Misuzu has no choice but to be tied up and played with by Ozawa. However, one day, when Hiroshi saw her mother trying to bite her into her hemp rope, he was driven by a distorted desire to own her mother. and….
