Case Closed Episode 487 SUB at Gogoanime

Synopsis: Kogoro is invited to attend an interview of the mystery book writer Masataka Moroguchi. The next day, Moroguchi is found dead from consumption of poison. The room was locked and the key was in Moroguchi's palm; The only opening to the room is a small window which can only fit a small child. Sato and Takagi are called to the scene and believe that the murderer is one of Moroguchi's three interviewers.