S01E603 — The Seance's Double Locked Room Mystery (First Locked Room)

Conan, Mouri, and Ran are lost in the woods and arrive at a mansion where they are introduced it a fan club for Kira Miyahara, the heroine of a movie titled Blackmagic Girl who was supposedly killed in a car accident a year ago and whose body was never found. They are introduced to the club members: Kouji Yatsukawa, assistant director of Nichiuri TV; Reiki Hirasaka, the creator of the Blackmagic Girl series; Shouko Utakura the aspiring gravure idol; Yutaka Kani the president of Kira's fan club; Kazuo Hoonogi the doctor; Maho Izumi, a timid member of the club; and Ryuuichi Mifune a cosplay cameraman. They tell Kogoro that they are holding a séance to communicate with Kira Miyahara. During the séance, ghostly signs begin to show themselves and Kira's voice has heard swearing vengeance on her killers. Conan and Kogoro reveal the special effects to be activated by a remote control in Hirasaka's possession.