Secrets Behind the Wall

壁の中の秘事

Also known as Affairs Within Walls, Skeletons in the Closet, II segreto dentro le pareti, Il segreto nel muro, ひめごと

In a housing complex, a college prep student is spying on his neighbor, a former peace activist, who now leads an ordinary life as a housewife, having a secret affair with an ex-lover.