Eri, the wife of Keigo, lives with her father-in-law, Tokuro, under the same roof. Eri, a full-time housewife with no children, takes care of cleaning and meals for Tokuro, who lives on the first floor. Before moving in with Eri, Tokuro lived alone and pretended to be an elderly man with no energy, but in reality, he was quite the womanizer. Peeking at Eri's panty shots had become his daily routine. However, Tokuro was no longer satisfied with just panty shots and began secretly filming the couple's bedroom…
