The mother always pretended to be calm, hiding her loneliness, but her son could see the emptiness deep within her heart. Having raised him all on her own, he decides to give her forbidden filial devotion. In front of his late father's portrait, the son makes his mother climax. In this mother-son household, the mother constantly reminisces about her intimate moments with her deceased husband, suffering from sexual frustration. The son becomes aware of her inner turmoil and chooses to confront it directly.