is the thirteenth film installment of the Case Closed manga and anime series. The film was released in Japan on April 18, 2009. This film earned 3.9 billion yen in the domestic Japanese box office, making it the highest-grossing film in the Case Closed series. The film involves active members of the Black Organization, making this the Black Organization's second appearance in a film since Countdown to Heaven. A special preview to the film aired in Japan on Animax. A new member from the Black Organization that shrunk Shinichi's body manages to find out about Shinichi's transformation into Conan. This discovery starts to put those around him in danger as Gin and the other Black Organization members start to take action. The film was nominated for Best Animated Film at the 2010 Awards of the Japanese Academy.
Plot
The film begins with Conan having a nightmare where Gin and Vodka discover his true identity in Mouri's office and Vodka shoots Ran, but Conan awakes. In real life, a man driving down a hillside road realizes that his car's brakes have failed. The car crashes into a toll booth, killing the man. He leaves a dying message: "Tanabata kyo." A Mahjong tile next to his body links this case to six others in Tokyo, Kanagawa, Shizuoka, Nagano, and other Japanese prefectures. Because of the Mahjong tiles left beside each victim, the police conclude that the same person or organization committed these murders. The police across Japan unite to solve the serial murder case.
After a police conference about this case, Conan discovers a police officer entering a black Porsche 356A owned by Gin. He concludes that a Black Organization member disguised as an officer has infiltrated the meeting. On Tanabata, Conan corners Vermouth in the underground parking lot of a shopping mall. She reveals that the Black Organization needs a memory chip, which the murderer took, and a new member, "Irish".
Conan employs the help of Heiji Hattori to solve the case by following the dying message lead. He and Heiji find out that two years ago, in Kyoto, an accidental fire in a hotel killed a young woman named Nanako Honjou. The elevator could only hold seven, but eight needed to evacuate. Nanako was not on the last elevator and did not escape.
Conan tracks down her neighbor, Shun Sawamura, and asks him some questions. He finds out that Nanako and her boyfriend, Kousuke Mizutani, often went stargazing together. Conan realizes that the crime scenes are ordered like the star constellation Ursa Major, making the last crime scene Shiba Park. The police also figure out the pattern and leave for Tokyo Tower.
Conan confronts Mizutani, who is about to commit suicide in Nanako's memory and to avoid arrest. Mizutani thought one of the seven had pushed Nanako out, but Nanako's brother, Kazuki Honjou, shows up and testifies that he had overheard two survivors say that Nanako voluntarily stepped out. Conan reveals that the murderer is Kazuki because Mizutani would not murder to stain the memory of Nanako. He tells Mizutani that the survivors appreciated Nanako's sacrifice and sent flowers to her memorial. Kazuki lied to manipulate Mizutani into avenging Nanako but did it himself after realizing that Mizutani would not. Mizutani realizes that Nanako would not have wanted him to commit suicide and returns the victims' belongings to Kazuki, who would have used the evidence to convict Mizutani. Kazuki threatens Conan and Mizutani with a knife. Matsumoto appears and shoots the knife out of Kazuki's hands.
Conan realizes that Matsumoto is Irish in disguise. Irish claims that he does not want to kill Conan. He says he discovered Conan's true identity, having matched his and Shinichi's fingerprints, and wants to turn him in to the "boss" alive. The "boss" would know of Gin's mistake and punish Gin, satisfying Irish's revenge against him for killing his friend Pisco. Conan wants the memory chip, but Irish refuses to hand it over. Ran arrives at Tokyo Tower and finds Irish still disguised as Matsumoto. She uses karate, but a kick to his face tears off part of his mask. Taking advantage of her surprise, Irish overpowers Ran.
Irish and Conan move outside near the top, and a helicopter with Gin, Vodka, Korn, and Chianti arrives. Irish shows them the chip, and Gin orders Chianti to shoot Irish and the chip. The bullet seriously injured Irish. Conan tries to drag him to safety, but Gin notices Conan and tries to shoot him. Irish shields Conan and dies.