Kogoro, Conan, and Ran run into a typhoon on their way home from the hot springs and are forced to spend the night at the train station with salesman Hokari, factory manager Takegami, backpacker Carl, assemblyman`s secretary Norikoo, local old woman Fune, stationmaster Inagaki, and station employee Masako. When Kogoro exits the station`s hot spring, he discovers a scrap of paper in his coat pocket. On it is written the message “Mori-sensei, someone will be killed here tonight. Please catch the culprit. The culprit is--". Later, a murder actually does occur...