Conan and Kogoro see a news report on TV that Daijiro Butsumaru, the victim of a traffic accident, has disappeared. A woman, Fusae Mori, who witnessed the accident while out for a walk, reports it to the police with Futsumaru's driver's license, but it seems that the assailant, Hajime Inukai, has gone missing, saying that he is taking Futsumaru to the hospital. Meanwhile, the Mori Detective Agency receives a phone call. It was from Futsumaru's wife, Shoko Futsumaru. Conan and Kogoro head for the home, where they are greeted by Shinko and her secretary, Shinya Kadokura. Their request was to "find my husband and bring him back safely. Then they receive a phone call. The caller says, "I want you to buy Butsumaru's body for 10 million yen. Conan feels uncomfortable when he sees the two men willing to pay 10 million yen without informing the police as the murderer demanded.