A series of mishaps occur overnight at a love hotel located in the famous Kabukicho red light district, where people with shady secrets and conspiracies flock to. Toru, a young hotel manager who is understandably distraught when he encounters two unexpected guests. The first is his girlfriend, an aspiring singer who's agreed to sleep with a music executive in exchange for a record deal. The other is his sister, an actor in the porn shoot on the hotel's second floor. Before the night is through, many more characters — including a young Korean woman working as a "delivery girl" in order to raise the money to open a shop back home — will experience surprising, life-changing events in these busy hallways and bedrooms.