In the movie, Conan, along with his friends, are invited to participate in the beta testing of a new virtual reality game called "The World of Holmes". The game is set in London during the time of Sherlock Holmes, and participants must solve a mystery using their deductive skills.
However, the game takes a deadly turn when the players are trapped in the virtual world and must solve a riddle in order to escape. If they fail, they will be trapped in the game forever.
As the players try to solve the riddle and escape the game, they discover that the person behind the game has a sinister motive and is seeking revenge on the descendants of those who wronged their family in the past.
Conan, using his intelligence and deduction skills, races against time to solve the riddle and save everyone from the deadly game. Along the way, he must also confront his own fears and insecurities.
The movie combines elements of mystery, suspense, and virtual reality to create a thrilling and engaging story.