Kyoko is a university librarian and she also helps her parents with their drycleaning company. She is involved with a childhood friend from the neighborhood, Kota. He is the son of the local tofu maker and has begun a moderately successful career as a stand-up comedian. A visiting lecturer from Tokyo falls head-over-heels in love with Kyoko and asks her to go abroad with him to Beijing, where he has to spend the next few years for his research. But Kyoko cannot decide.
Muraki is a failure in his job as a salesman and has to deal with his wife's disappointment and criticism at home. One day, after sleeping in a park, he happens upon two women who look like they've been victims of a sexual assault. He helps them but as night comes an increasingly twisted mindgame unfolds between the involved parties and it is no longer certain who's the victim and who's the perpetrator.