Rei, a widow who lost her husband in an accident, is still haunted by her husband's death. One day, I hit my son who has the image of my husband who can not stand loneliness and piles up his body. It was just a one-night love affair... Rei thought so, but her son was different. Perhaps because he remembered the taste of a woman's body for the first time, from that day on, he began to pursue Rei's body relentlessly. Unable to say no, Rei accepts and eventually becomes indulged in forbidden lust...