午夜的涩谷。 和希，一个讨厌母亲再婚的女孩，等待永远不会回来的父亲。 她遇到了一个嗜睡症的年轻人，他盯着她的前女友优子。 和希发现自己被三谷所吸引…… 我想被那样的人狠狠地盯着。 这可能会改变她周围的世界。 终于，黎明来临了……

Yuko Yajima works at a library. To her co-workers she appears as an extremely shy and introverted person who hardly lets anyone know her true feelings and never smiles. However her interest in a man living in room 202, Mamoru Kosino, leads Yuko into some risque behavior. The interest turns into obsession, as Yuko's jealousy turns into a thrilling game where she sneaks into apartments and scares tenants away, hoping to have Mamoru all to herself.