The father-in-law, who had been thinking about having sex with his beautiful daughter-in-law at least once, accidentally sees her masturbating, which intensifies his desires. One day, he follows his daughter-in-law as she goes out and discovers that she is having an affair. Filled with jealousy and anger, the father-in-law uses this as leverage to force himself on his daughter-in-law under the pretense of giving her a lecture. From that day forward, the father-in-law does whatever he wants with his daughter-in-law.
