Conan is attacked by a theif attempting to break into a safe and trapped inside a coffin. Kogoro is hired to find the person who stole Karahashi Gotaro's will and narrows the suspects down to his three children. Conan uses his DB badge to contact Ai and the others and tells them the coffin he's trapped inside is being transported by a hearse. Mitsuhiko hears about the case Kogoro has been hired to investigate from Ran and deduces that it must be related to the robbery Conan witnessed. Ai and the others realize Conan is inside Gotaro's coffin, but the hearse is already on its way to the crematorium...