A Peephole(2014)

A Peephole is a Japanese series following Tatsuhiko Kido, an art school student living alone in a cramped apartment. When he discovers a hole in the wall separating his room from his neighbor's, curiosity gets the better of him—only to be caught red-handed peeping at Ikuno Emiru as she changes clothes. Rather than report him, Emiru strikes an unusual bargain: she'll allow him to peek on alternate days if he lets her do the same. What begins as a mortifying accident spirals into an awkward arrangement that blurs the line between violation and consent. The series explores the strange intimacy that develops between two strangers bound by mutual blackmail and voyeurism, examining desire, privacy, and the peculiar bonds that form in close quarters.