satomi, a housewife living with her husband and her father-in-law who needs care, feels that something is missing in their happy but somewhat bland life. her husband gradually loses interest in her, and satomi's desires grow stronger. during these days, only her father-in-law compliments her beauty. eventually, satomi engages in a physical relationship with her father-in-law. her hidden desires explode, and satomi and her father-in-law repeatedly engage in intense, crude adulterous sex that young couples cannot achieve. #class p