When Conan hears Camel's story, he realizes Vermouth disguised herself as Jodie and spoke with him. Conan is frustrated the he acted just as Bourbon (Amuro) and Vermouth planned. Amuro meets with Vermouth, who is still disguised as Jodie. She informs him she learned from Camel that Kusuda shot himself. Amuro responds that there was another burned man who was shot in the head when Kusuda disappeared with thoughts of FBI agent Akai Shuichi on his mind. Amuro deduces Akai is still alive, but...

Elementary school teacher Natsuko is struck while working at school and pushed off the stairs in front of the park. Conan and his companions question Sugamoto, another teacher who had planned to walk her home, and parents Ueno and Kandachi, who had appointments to meet with Natsuko. Conan notices something strange while listening to their stories. Later, the police review a photo of the answer sheets Natsuko was grading. Jodie and Camel fail to discover any information that could help them solve the crime from the photo, but Amuro and Conan realize who the culprit is after seeing the picture.

Amuro witnesses a woman pushed from the top of the stairs at Haido Park. However, he doesn't see the culprit's face. The unconscious and gravely injured woman pushed from the stairs is Jodie's friend and Haido Elementary School teacher Natsuko. Conan and Jodie head to the park and determine Natsuko was attacked somewhere else, and it soon becomes clear she was assaulted at the school. Later, Megure and the police question her coworker Sugamoto, who tried to give Natsuko a ride home, and Ueno and Kandachi, parents of students with appointments to see Natsuko...

Conan, Ayumi, Genta, and Mitsuhiko meet the Silver Detectives Tokunaga, Mutsuhiko, Ginta, and Yasuko who find a stolen bicycle. The next day, a young man named Kuroda is found dead in his home. The Silver Detectives are the first to discover the body. While pursuing a hooligan they caught littering, they chased him into the house where they found the body.

Conan and Kogoro are taken to a warehouse by the gang of thieves to wait for their boss Mr. Head. Suddenly Head's metallic altered voice comes over the speakers. Kogoro looks at his watch and panics when he sees the time is 2:30 in the morning. If he doesn't determine who killed Head's son by dawn, Ran will be killed by an assassin.

Inspector Megure asks Kogoro for help disguising himself as a famous safecracker and infiltrating a gang of thieves. However, the gang boss Mr. Head sees through his disguise. The man who killed Head's son is among his subordinates, and he instructs Kogoro to work with the gang as planned to determine the killer's identity.

While Shinichi and Ran are on a date at the Beika Aquarium, Shumoto is stabbed to death. Shinichi and Inspector Megure question Naho, Kanoko, and Jinbe, the people Shumoto was communicating with using his phone.

The police fail to find the container used to hold the poison that killed Reina in the hospital room, and Megure believes it's likely the culprit took it outside to dispose of it.

Conan and his friends search for Ai, who disappeared on her way home from shopping. She is bound and imprisoned by a robber inside the home of her recent acquaintance Higaki Mitsuru along with Mitsuru herself.

Renno is led between two posts without a rope barrier and falls into the river. Yatsukoshi, who had feelings for Renno's mistress, Kakura, whose younger sister had her emotions toyed with, and Takami, whose husband cheated on her, all had motives.