Conan, Ran, and Kogoro visit the city of Kanazawa where Kogoro has been asked to provide a story for the city's Kaga-Hyakumangoku mystery tour. They participate in a scavenger hunt for clues that lead them to all sorts of sightseeing spots around the city. Along the way, Kogoro, Conan, and Ran notice a young couple that seems to visit the same places they are, as well as a purse snatcher that Kogoro was able to stop, appearing at a later site. It is revealed that the tour hosts were trying to get video footage of Kogoro to help promotions, and the couple and the purse snatcher and victim were all actors. However, at Kanazawa Castle, one of the actors is soon found assaulted for real.
