Conan, Ran and Kogoro get caught up in a kidnapping case while visiting Kanazawa. However, it's actually an act put on by the victim, former printed silk maker Saikawa Manabu. With the culprit identified, it's only a matter of time before he is arrested, but then company president Hayashi Soichi is attacked. Based on his possible motive and witness testimony, Manabu seems like the most likely suspect.

Miike Naeko of the MPD Transportation Department goes to karaoke with her colleagues Yagi Shiori and Momosaki Toko. On the way home, Momosaki is attacked once she's alone, and her body is discovered the next day. One week earlier, Momosaki and Yagi arrested Aono Kengo, Akamine Manji, and Shiroyama Yuzo for traffic violations and got into a fierce argument, and the police believe it may be related to this case. Meanwhile Yagi goes to visit a certain individual.