After her husband passed away, Misuzu raised her son Hiroshi alone. Hiroshi was studying hard to get into medical school, but he needed a large sum of money for tuition. It was then that her husband's brother Tomohiro suggested that if she offered her body to the neighborhood association chairman Ozawa, they could support their living expenses. Reluctantly, Misuzu was bound and toyed with by Ozawa for her son's sake. However, one day, Hiroshi saw his mother struggling with hemp ropes and was driven by a twisted desire to possess her. And then…
