- Minami Takayama (Conan Edogawa (voice))
- Kappei Yamaguchi (Shinichi Kudo (voice))
- Wakana Yamazaki (Ran Mouri (voice))
- Akira Kamiya (Kogoro Mouri (voice))
- Rikiya Koyama (Kogoro Mouri (voice))
- Megumi Hayashibara (Ai Haibara (voice))
- Kenichi Ogata (Hiroshi Agasa (voice))
- Yukiko Iwai (Ayumi Yoshida (voice))
- Wataru Takagi (Genta Kojima (voice))
- Ikue Otani (Mitsuhiko Tsuburaya (voice))
- Chafurin (Juzo Megure (voice))
Detective Conan — S1E487
Episode: Metropolitan Police Detective Love Story 8 Left Hand's Ring Finger
Air Date: 2007-10-15
Runtime: 50 min
Overview
Kogoro is invited to attend an interview of the mystery book writer Masataka Moroguichi. The next day, Moroguichi is found dead from consumption of poison. The room was locked and the key was in Moroguichi's palm; The only opening to the room is a small window which can only fit a small child.