Yurie had a secret she could never reveal to her daughter—the fact that she was having a physical relationship with her daughter's boyfriend. Unreasonably, she couldn't let go of the pleasure, and soon the affair spiraled out of control. Then, her daughter announced her engagement to the man. If they married, Yurie would become his mother-in-law, forced to live under the same roof. Torn between impulse and guilt, desire and morality, this is the path Yurie chose.