A father returns home to live with his son and daughter-in-law while recovering from a mild stroke, leaving the wife responsible for his care. One day, as he appears to be asleep, he secretly watches his son make her get him off with her mouth beside the bed. He later spies on her having illicit sex with a deliveryman. Having desired his daughter-in-law as a woman for some time, the father-in-law reveals that he knows about her affair and uses the secret as leverage while pleading for his own turn. She hesitates at first, but gradually spreads her legs and begins to respond with pleasure.