Chikan to nozoki: Taiiku kaikei jôshiryô (1992)

Two perverted men peering into the girls' dormitory and three female students living in the girls' dormitory are ordered to have sex. The female dormitory students, who do not even dream that they are being watched, change their clothes with the window open every day. One day, the peeping men make up their minds to sneak into the girls' dormitory.