Last year, Misato, who lost her husband, began living with her daughter and son-in-law. About six months after they started living together, Misato started to notice that her son-in-law, Jun, was acting strangely. One day, while cleaning Jun's room, she found a hidden pornographic magazine... Upon closer inspection, she found a nude picture of a woman her own age... Misato, who hadn't had sex since losing her husband, became engrossed in the magazine and became obsessed with it. Then, Jun appeared...