Reiko, who lives with her daughter, remarries a man with a son. Her daughter, who has been rebellious against strict upbringing since before, conspires with her stepson to corner Reiko. When it is discovered that Reiko used to work in the sex industry, they use this as blackmail material to confine and restrain her. Under the training of her stepsons, Reiko degenerates into a compliant sex toy…
