The prisoner turned his back to the elevator, and Conan reasoned in front of the prisoner. At this time, the juvenile detective team took the opportunity to enter the elevator, and the elevator began to go downstairs. Because Conan has turned the elevator switch into manual control in advance. So the elevator door was not closed. When the elevator descended to the ceiling of the elevator and the gap between the elevator door and the floor was just enough for one person to pass, Conan entered the elevator and successfully escaped.