After 20 years of remarriage, the happy family life of mother Kaoru Namioki begins to collapse due to her husband's sinister plot. Forced to wear a blindfold by her husband, Kaoru writhes in uncontrollable pleasure as her body is caressed, unable to suppress the slippery wetness flowing from her. But this moment marks only the beginning of her husband's scheme. A forbidden incestuous relationship with her beloved son becomes the catalyst that destroys the family. Unaware of her husband's true intentions, Kaoru continues to deepen her bond with her son, while a terrifying plan lurks behind the scenes.