On a Sunday morning, the mother calls her son into her room as usual. Claiming it's a special day, she begins masturbating in front of him. The son watches in shock and confusion, but the mother gradually grows more aroused. Reaching climax, she whispers to her son, "Now it's your turn..." and urges him to touch her. Hesitant yet obedient, the son fulfills her desire. Later, in the bath and in bed, their forbidden bond deepens further. This is the story of a weekend filled with raw, incestuous desire between mother and son.