One day, the son accidentally witnesses his mother masturbating. From that night on, he begins secretly watching her every evening from the shadows. He continues to gaze as his mother's crotch opens in the silence of night. As he keeps watching her every night, strange emotions begin to stir within him. He starts feeling intense sexual desire toward his mother as she goes about her daily chores. Meanwhile, the mother, growing older, struggles with uncontrollable urges. One day, she begins pleasuring herself while whispering her own name. Her voluptuous body and swollen folds drive the son to breathe even heavier, embracing overwhelming passion like never before.