Part in the story
Kishida took a ride in the roller coaster. Near the end of the ride is in a tunnel at all a horrible gurgling, which later turns out to be murder on Kishida. Immediately after the car is back at the start, the police called and Juzo Megure and his colleagues appear after a short time. As a police officer in the case of Aiko finds a bloody knife, the suspicion falls first on it but shortly afterwards Shinichi can that Hitomi as perpetrator convict.