http://www.imdb.com/title/tt0990372/

Conan and his friends were invited to the premier of an new virtual computer game. But someone programmed the game, that if they can't answer the riddle in the game, they all have to die.

Detective.Conan.Movie.06.The.Phantom.Of.Baker.Street.2002.名侦探柯南剧场版06：贝克街的亡灵