A married woman in her third year of marriage lives with her husband's father. Her busy husband is often away on business trips, so the wife has no sexual relations with him, and she masturbates, but her father-in-law watches and smirks. One day, a delivery man from her affair partner comes and they have sex, but her father-in-law is watching again. Then, the father-in-law uses the fact that he witnessed her masturbating and cheating as an excuse to demand sex with his wife. He threatens to tell her husband, and the wife cannot refuse, so she opens her legs. She is then raped in the middle of the night by her father-in-law, whom she hates, and is made to cum many times.