Case Closed - Season 1 - Eps 687: The Unsolvable Ice Trap
Professor Agasa take the Detective Boys to visit an ice village. The mayor and his secretary boast about cancelling the winter festival to build a resort to bring in more income. The group stays overnight in the ice hotel. The next morning, the mayor staying in another part of the ice hotel is found strangulated in his bed. Professor Agasa reveals the culprit to be the ice sculptor using an ice melting trick to murder the mayor without leaving any evidence behind. The sculptor explains that he overheard the mayor and his secretary talk about murdering the previous mayor who suspected their embezzling the city's finances.
About Case Closed

Title: Case Closed
First Air Date: 1996-01-08
Last Air Date: 2025-03-08
Status: Returning Series
Rating: 8/10 (from 683 votes)
Language: JA
Seasons: 2
Total Episodes: 1157
Network: YTV
Genres: Animation, Crime, Mystery, Comedy
Production Companies: TMS Entertainment, Kyokuichi-Tokyo Movie
Synopsis
The son of a world famous mystery writer, Jimmy Kudo, has achieved his own notoriety by assisting the local police as a student detective. He has always been able to solve the most difficult of criminal cases using his wits and power of reason.
Cast

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)