Detective Conan: The Bride of Halloween 2022

Former MPD superintendent Tsutomu Muranaka, set to marry his fiancée Christine Richard, receives a death threat. With police protection ensured, the police attempt to practice fighting against any threats that would happen during the wedding. Meanwhile, while chasing a serial bomber that has escaped custody, Yuya Kazami is knocked unconscious. While Rei Furuya tries to assist him, a bomb is attached to his neck. The next day, while visiting the MPD headquarters, Kogoro, Ran, Conan, and the Detective Boys come across a man holding a tablet that explodes, with Kogoro being injured while trying to protect Haibara. Conan later meets with Rei, and learns that the explosion is possibly related to an attempted bombing incident that Rei and his classmates - Morofushi, Matsuda, and Date - had prevented years ago.

Afterwards, Ran, Conan, and the Detective Boys are invited to Shibuya for location scouting for the wedding, set to take place during the Halloween festival. Christine receives a message that tells her to retrieve something, but she and Muranaka are set to have a meeting soon, so she lets the Detective Boys take the gift for her. However, when they reach the area, they find the same bomb that Rei had defused 3 years earlier and narrowly escape just as it explodes. Meanwhile, Detective Chiba is kidnapped by an unknown perpetrator, who demands to meet Detective Matsuda, not knowing that Matsuda has died 3 years ago. Detective Takagi disguises himself as Matsuda and meets with the perpetrator, who reveals herself as Elenica Lavrentyeva, the leader of Nado Unichtozit, a civilian group focusing on capturing the bomber Plamya, responsible for the bomb on Rei’s neck. Elenica reveals that the hostage found during the bombing incident years ago was her brother, who had escaped with the help of Matsuda and stole a tablet from Plamya, only to be killed in front of the MPD headquarters.

The police infiltrate the area and the Nado Unichtozit members escape. Later, Christine, who considers cancelling the wedding, receives a message that forces her to hold it instead. Christine and Muranaka have the ceremony in private. With Ran’s help, Conan notices a pattern of the enclosed Shibuya roads for the festival that matches the paper Elenica’s brother was holding during the time of his death, and thus deduces that Muranaka might be Plamya. Conan works with Nado Unichtozit to infiltrate the wedding, only for Christine to be revealed as Plamya instead - she had led the Detective Boys to the bomb-filled building, brought the Nado Unichtozit members to Japan, and rigged the entire Shibuya festival area with the two liquids used in the bombs which, upon interaction, would create a huge explosion. Christine attempts to escape on a helicopter, but Rei, who has managed to defuse the bomb on his neck with aid from Kazami, intercepts her and blows up the helicopter, fighting her as it crashes onto the ground below.

Muranaka knocks Christine unconscious, while Conan convinces Elenica to not murder Christine. Conan, the Detective Boys, and all the members of Nado Unichtozit work together to use a huge inflatable ball to block both liquids from interacting, thus preventing the explosion that would destroy Shibuya. Christine is arrested, the liquids are cleaned from the streets, and Muranaka promises Elenica that Christine will get the justice she deserves.