Agasa takes the Detective Boys to a neighbor who is giving away his belongings before moving to England. While there Teruya Kanou's, the neighbor, Papillon is missing when the longcase clock strikes twelve and chimes twelve times. When Doyle's, the Papillon, collar is found inside an incinerator and the backdoor opens, Conan realizes that a culprit attempted to falsify the scene to give the impression Doyle ran away when in fact the culprit is hiding Doyle in the House to steal him afterward. Shino Hasuki's shoes are found near the crime scene and she is suspected of being the culprit.
Dognapping
Location:Kano household
Victim:Papillon
Suspects:Yoshio Tsunashima, Aki Tosabayashi, and Shino Hasuki
Conan notices that there is glass wool in the incinerator and realizes who the culprit is. After gathering the guests, Conan reveals that the grandfather clock did not chime since the culprit changed the time on it and reveals that the culprit used the stereo to simulate the chimes. Doyle chased after the chime and is lured to the back of the stereo with food containing sleeping pills. Conan reveals that the culprit was after the jewellery on Doyle's collar which is worth a fortune. He reveals that the culprit is Yoshio Tsunashima; Tsunashima had reserved a small pendulum clock which was becoming slower by a minute per hour, meaning something was weighting down the pendulum which was revealed to be Doyle's collar. Tsunashima confesses to his crime and reveals he needed the money to continue to support the abandoned dogs he kept taking in. Kanou decides to give the collar to Tsunashima and not push for any charges. That following evening, they find out Kanou's other dog, Arthur, was the one who was placed Hasuki's shoes elsewhere. Conan reveals that Arthur wanted to prevent Hasuki from leaving so he could be with his love Christie, Hasuki's German Shepherd. Hasuki announces that she had accepted Kanou's proposal and will be joining him in England.
