The story begins with Ayumi watching a vampire movie late at night in her apartment. At her mother's insistence, the little girl goes to bed, but is awoken minutes later by the sound of Kaitou Kid landing on her balcony. After a brief conversation, Kid flies off, pursued by the police (who are lead by Nakamori). The next day, she discusses the meeting with her friends, and Ai Haibara asks Conan what the "Heisei Holmes" intends to do. Conan retorts that Kid will be caught eventually. The movie then cuts away to a massive meeting at the metropolitan police department (which Kogoro is attending as well), headed by the superintendent of investigation, Shintaro Chaki. Chaki states that they have received a note from Kid stating his next crime, marked "From the dusk of the lion to the dawn of the virgin, when the clock without the second hand is pointing toward the twelfth letter, I shall take the memories' egg, from the shining sky chamber". The note is signed "The Last Wizard of the Century".
The superintendent comes to the conclusion that the "memories egg" is a recently discovered Fabergé egg belonging to Nicholas II of Russia, which is to be displayed in the Suzuki Modern Art Museum in Osaka on August 22nd. Inspector Nakamori takes it at this point, explaining that the first line of the poem talks about the last day of Leo (August 22nd) and the first day of Virgo (August 23rd), between which Kid will attempt to steal the egg. The meaning of the second line is, as of yet, undiscovered. The meaning of the last line is interpreted as referring to "Castle Tower", the main tower of Osaka Castle. The movie then picks up at the point where Conan, Ran, and Kogoro travel to Osaka, the latter in order to secure the egg. They meet Sonoko at the airport, and travel by limo with her to the museum (which her father owns). Meanwhile, over at Professor Agasa's house, Ayumi, Mitsuhiko, and Genta complain about how Conan went to Osaka without them. In order to placate them, the professor offers them some watermelon slices, but asks of them to solve a riddle before they can eat. Not one of the children being able to get it, Ai effortlessly solves the riddle.
Meanwhile, at the Suzuki Modern Art Museum, Conan, Ran, Kogoro, and Sonoko meet up with Heiji Hattori and Kazuha Toyama. Sonoko comments on how their relationship mirrors that of Ran and Shinichi's, and coupled with Kazuha's words about how Hattori kept talking about "Kudo", Ran begins to suspect that Shinichi and Conan are one and the same. Once inside the museum, Sonoko's father introduces them to Selgei Ovchinicov, the Russian Embassy's first-class secretary, Shouichi Inui, an art dealer, Hoshi Seiran, a Chinese researcher on the Romanov Dynasty, the time which Nicholas II lived in, and Ryu Sagawa, a freelance photographer covering the press with news of the egg. All four of these people want the egg for one reason or another, making themselves suspect in Conan's eyes. After all four have left, Sonoko's father shows Conan, Ran, Kogoro, Sonoko, Heiji, and Kazuha the egg, which is not only priceless and beautiful, but a work of craftsmanship as well. Conan correctly deduces that the egg can be opened, and when it is, it reveals a gold model of Tsar Nicholas II with his family. Furthermore, when a key is inserted and winded, the model rises, music starts playing, and the Tsar model starts to flip through the book that he is holding.
At this point, Inspector Nakamori and Superintendent Chaki arrive, and discuss the meaning of the second line in Kid's poem. After several guesses, Kogoro deduces that Kid will strike when the hands of the clock form an "L" - three o' clock (in the morning). Later on, Ran, Sonoko, Kazuha, Conan, and Heiji visit a fortune-telling booth in Naniwa, and the fortunes that Conan and Ran receive makes them think of each other. Meanwhile, over at the museum, Inspector Nakamori shows Kogoro a decoy egg, which will be placed in the museum in the place where the real egg is supposed to be. Night soon falls, and Conan figures out (from some casual talk from Hattori) that Kid's heist is supposed to take place at 7:20 in the evening, not 3:00 in the morning. Unfortunately, since he and Hattori are too far away from the museum, they are incapable of alerting the adults (having only seven minutes before the heist is attempted). Just before Conan runs off, Heiji stops him and tells him that the "Shining Tower" part of Kid's poem refers to Osaka Tower, atop which lies a weather center.
Sure enough, Kid is atop the tower, and using remote-control bombs, sends the entire district into a blackout. This forces out all of the buildings in the district to bring out their backup power systems, and the only building with a backup power system in the district that is not a hotel or hospital is a warehouse - the warehouse where the real egg is kept. Getting his turbo-power skateboard, Conan chases after the glider-bound Kid, but cannot find a way to follow him through the traffic-jammed street. Hattori soon arrives on his motorcycle, and the two chase after Kid to the egg's new location. Once they get there, Conan runs inside the building by himself, but is powerless to stop Kid from getting away with the egg. Conan tenaciously chases after him with Heiji - until a minivan collides with the Osakan teen and sends him and his motorcycle skidding across the ground. At Heiji's urging, Conan continues to chase after Kid on his turbo-powered skateboard - until Kid is shot in the right eye by an unknown assailant and apparently falls into the sea and to his death.
Conan finds Kid's pigeon and the egg dropped onto the ground - the egg is still in good shape, besides its crate being smashed - and a huge search is conducted the rest of the night. However, Kid's body is not found. The next morning, the egg's display is postponed to check for any damage, and Kogoro, Ran, Conan, Sonoko, Sonoko's father and his servant Mr. Nishino, and the four other people in the museum the previous day travel back to Tokyo by ship. Also on the ship is Natsumi Kousaka, whose great-grandfather was a worker in Fabergé's factory, and her butler, Kuranosuke Sawabi. As Natsumi explains, while going through her late grandmother's momentos, she found a ripped sketch of a Fabergé egg, with "MEMORIES" written on the bottom. Conan inspects the sketch, and infers that it was, in fact, a larger sketch than everybody thought, which displayed two eggs. Conan then fiddles with a small mirror in the bottom of the egg, and using a pocket flashlight, makes it project an image onto the wall - an image of Yokosuka Castle, which was built by Natsumi's great-grandfather. Kogoro comes to the conclusion that when Natsumi's great-grandfather (and great-grandmother) came to Japan in order to flee the Russian Revolution, they brought the two eggs depicted in the sketch with them, one of which is the one on the ship right now, and one of which is hidden somewhere in the castle. In addition, a key that Natsumi found with the sketches is supposedly the key that unlocks wherever the egg is held in the castle.
Conan develops suspicions that everyone on the ship, sans himself, Ran, Kogoro, Sonoko, and Sonoko's father, have reason to steal both eggs. Later in the day, Ran is treating Kid's wounded pigeon when Mr. Nishino, Natsumi, and Sonoko come in, the first of which immediately leaves the room at the sight of it. During tea time, Hoshi Seiran is also invited, and Natsumi explains that ever since childhood, a mysterious phrase has always been stuck in her mind: Barushe Niku Katta Beka. The four girls then discuss various traits about themselves, such as eye color and birthdays, during which Conan lets slip his own - Shinichi's - birthday, deepening Ran's suspicion that he is Shinichi. Later on, just as the sun is setting, Ryu Sagawa, the photographer, shows off a necklace made from the ring of Nicholas II's daughter Maria. When Hoshi asks where he got it, Ryu simply scoffs and walks off. During the night, Ryu is murdered, shot in the right eye in the same fashion as Kid (supposedly). The murder is soon discovered, and Inspector Megure, along with officers Takagi and Shiratori, arrive at the scene by helicopter. The inside of Ryu's room is a mess, with furniture and belongings thrown askew and his pillow ripped open. The police find Nishino's pen scattered inside the room, pegging him as the culprit. In addition, Takagi and Shiratori report that all videotapes in Ryu's room are gone.
Conan suddenly runs off, and Ran follows, bumping into Offier Shiratori in the hall. Shiratori insists that Ran regroup with the others, since the assassin could still be on the ship, while Conan uses the phone box to phone Professor Agasa, telling him to look up a sniper who likes to shoot people in the right eye. Suddenly, he feels the presence of someone looking at him, but when he turns around, no one is there. Agasa soon comes up with the results: a thief of unknown age and gender, nicknamed "Scorpion" by the ICPO, likes shooting people in the right eye. Meanwhile, Officer Takagi finds Ryu's ring necklace in Nishino's room, further pegging him as the murderer, until Conan comes in and realizes that Nishino's pillow is rubber; further interrogation reveals that Nishino is allergic to feathers (hence his reaction with Kid's pigeon), and therefore could not have ransacked Ryu's room. After clearing Nishino's room, Conan shares with the adults his theory of Scorpion being behind the sniping of Kaitou Kid and Ryu, intriguing them - especially Kogoro, who demands how Conan knows of people like Scorpion. While Conan is struggling for an explanation, Officer Shiratori states that he heard it from Professor Agasa, and Conan realized that Shiratori was the person he sensed looking at him in the phone box.
Remembering that the fortune he received in Osaka said "Secrets will be revealed", Conan has the feeling that "Shiratori" might know his identity. Since he cannot risk using his watch stun-gun with Officer Shiratori watching, Conan is forced to use subtle hints to lure Kogoro away from his harebrained deduction that Nishino is Scorpion. Eventually, it is revealed that a few years back, Nishino beat up Ryu for insensitively filming a little girl whose village was destroyed by war, so Ryu would naturally hold a grudge against him. Kogoro then comes to a more rational deduction that the murder case is actually two cases overlapped, with the first one involving Ryu placing his own ring in Nishino's room and taking Nishino's (personalized) pen into his room in order to frame him for the theft. However, before the "stolen" ring could be announced, Scorpion killed Ryu and ransacked his room for the ring, along with taking all of his tapes since one of them could have captured his/her identity. Officer Shiratori states that he found a lifeboat missing from the ship, hinting that Scorpion had already escaped, and volunteers to go to Yokosuka Castle to provide security, seeing as Scorpion may also be after the second egg. Despite Kogoro's protest that Conan cannot go to the castle, Shiratori insists that the young detective go, seeing as how "his unique views may be useful".
Meanwhile, at Professor Agasa's house, the professor and Ai are preparing to go to the castle as well. Ayumi, Mitsuhiko, and Genta naturally stow away onto his car, and come to the castle too. At the castle, the professor gives Conan a pair of "heavily equipped" glasses, just like he asked, fitted with bulletproof glass. Naturally, Kogoro demands that the four other children remain outside the castle, along with the professor, but as soon as everybody else enters it, the "Detective Boys" look for another passage into the castle, as to "get to the treasure faster". Meanwhile, inside the castle, Inui (the art dealer) splits off from the main group and finds a hidden safe behind one of the pictures in one of the rooms. However, he triggers a trap, which causes a shackle to pin his wrist to the inside of the safe and an assortment of blades to rain down on him. Luckily, the blades are attached to the ceiling via strings, and stop within an inch of his body. After unlocking the shackle (and taking away all of Inui's lock-picking tools), the group continues with the tour of the castle, coming to a study that doubled as Natsumi's great-grandfather's room. Inside, they find a picture of the Mad Monk Rasputin, who is said to have led ruin to the Romanov Dynasty. Conan eventually figures out that there is a hidden basement in the castle, along with a hidden keypad to unlock it. After several guesses, the password turns out to be "Barushe Niku Katta Beka" - the phrase stuck in Natsumi's head, under slightly different pronunciation - as "ВОЛШЕБНИК КОНЦА ВЕКА" - "the last wizard of the century" in Russian.
At the correct password being typed in, the gears beneath the castle begin to move, revealing a small opening to a staircase leading underground. Meanwhile, the "Detective Boys" have found their own way beneath the castle, and choose to go forward in the tunnels instead of waiting for the professor to get help. With Conan's group who has traveled underground by now, Conan notices a sound made by the four other children, and goes to check it out, accompanied by officer Shiratori. Inui, meanwhile, sees a shadowy figure in one direction of the tunnels, and when he chases after it around a corner, he is shot by a silenced handgun held by the figure. After the "Detective Boys" and Conan's party have grouped together, the collective party come to a massive wall in the tunnel, covered in ornate engravings and pictures. Almost immediately, Conan figures it out, telling Officer Shiratori to shine his flashlight beam exclusively at a two-headed vulture drawing's single crown. The concentrated beam of light triggers the crown like a switch, as it is made out of photometer, and a set of hidden stairs appears, leading to a chamber even further underground.
The inside of the chamber is designed like a crypt, with a small shrine surrounded on all sides by water. A massive copper coffin lies in the center of the chamber, which Natsumi opens with the key that she had found in her great-grandfather's sketches. Kogoro heaves open the lid of the coffin, revealing a corpse inside, clutching the second egg. When asked about the identity of the corpse, Natsumi supposes that it is that of her great-grandmother, who could not be buried in a regular cemetery because of her Russian roots. When opened, however, the egg is revealed to be empty. Ayumi suggests that the egg is like a Matryoshka Doll, in that it needs to be put into something, or something needs to be put in it. At this point, Officer Shiratori reveals that he had borrowed the first egg from Sonoko's father, and had it in his bag all along. The first egg is placed into the larger second egg, but nothing happens. Conan figures that the many pieces of glass inside and outside both eggs are lens, and tells everybody else to extinguish the candles lighting the chamber. Next, Officer Shiratori's flashlight is placed vertically into the center of a goblet-like holder, and the two eggs, one inside the other, on top.
The vertical beam of light shines through the combined mechanisms of both eggs, triggering a photometer switch inside them. What results is multiple beams of light being projected from the eggs and hitting the walls of the chamber, revealing pictures of Nicholas II's family and friends. Everybody realizes that the golden figurines inside the first egg aren't reading a book, but a photo album - that's why the eggs are called "MEMORIES". Amongst the pictures are one of Natsumi's great-grandfather - alongside her great-grandmother, who she had never seen before in her life. When the lights fade, Conan begins to wonder where Inui went, just as Ai drops a cryptic question - why was Rasputin not amongst the pictures in the lights? After all, he was close to Nicholas II. Just then, Conan notices a laser sight creeping up Kogoro's body, over his right eye, and manages to knock him out of the bullet's path by throwing his flashlight at him. However, the unknown assailant is now targeting Ran, who Conan manages to push out of the way as well (and only further deepening Ran's suspicions that Conan and Shinichi are somehow connected). However, as everybody is running in panic, Natsumi falls and drops the interconnected eggs, and the assailant scoops it up and runs out of the chamber, Conan chasing after him/her. Leaving Kogoro to take care of the rest, Officer Shiratori chases after Conan.
As Conan, Shiratori, and the culprit near the stairs leading to the castle (with Conan tripping over Inui's corpse), the culprit plants a grenade near the stairs, using the explosion to cause a cave-in. Conan narrowly gets through, but Shiratori is left behind. As he nears the stairs, however, the culprit presses the reset button on the keypad, causing the door in the floor to slide back into place. Conan, however, quickly discovers a switch by the stairs to re-open the door from the inside. The culprit is nearly out of the castle by now, and throws a tank of propane onto the ground, using a torch to light it on fire with the intent to burn the entire castle down. Conan, however, has already made it out of the underground chambers, and confronts the assailant in the room, which is full of suits of armor. Interchanging his voice using his bow-tie, Conan reveals the assailant's true identity - the Romanov researcher - Seiran, who is not only really Russian but a descendant of Rasputin. Becoming steadily more hysteric, Seiran begins to shoot at every sound she hears, while Conan continues to switch between voices and explains that Seiran thought that the eggs should have belonged to Rasputin, and combed the world for it as Scorpion, developing her habit of shooting people in the right eye because Rasputin's body was discovered without a right eye.
At this point, Conan reveals himself and continues with his deduction in the burning room, that Seiran killed Ryu because of his habit of carrying his camcorder everywhere, and she thought that he had captured a picture of Rasputin in her room on the ship, and Inui was killed because he saw her preparing her silenced handgun. However, her reason for killing Kogoro and subsequently Ran was merely because Kogoro had insulted Rasputin earlier. Angrily, Seiran prepares to shoot Conan with the last bullet in her handgun, to which Conan tells her to go ahead and do. However, the bullet merely bounces off of Conan's glasses (earlier installed with bulletproof glass). While Seiran reloads the handgun, Conan activates his kick power-boosting sneakers and prepares to kick a piece of rubble at her, and just as Seiran points the reloaded gun at Conan, a playing card comes out of nowhere and knocks the gun out of her hands. Officer Shiratori emerges from the flames, carrying Seiran and telling Conan to come with him. Though Conan is hesitant, the castle collapsing from the heat of the fire forces him to follow Shiratori. Meanwhile, the others have gotten out via the entrance that the "Detective Boys" entered the tunnels through in the first place, with help from the recently-arrived Agasa.
The "Detective Boys" cry out for Conan, fearing that he has perished in the burning castle, when Conan appears behind them, giving the eggs to Natsumi. According to him, Shiratori had already taken Scorpion - Seiran - away, and fire engines soon arrive to put out the burning castle. Natsumi discusses plans to relocate her great-grandmother's corpse to a cemetery, alongside the other members of her family, while the others discuss the fate of Kaitou Kid - who Conan believes is still alive. Back at the Mouri Detective Agency, Ran muses over how much Conan looked like Shinichi when he pushed her out of the bullet's path. At the sight of Ran's tears, Conan almost tells her who he really is - until what appears to be Shinichi walks into the agency. While Ran rushes to get a towel, "Shinichi" leaves the agency, until Conan stops him outside and reveals him to be Kaitou Kid, as evidenced by the soot on his shoulders. Conan further states that he was Shiratori for most of the case, the real one having been in another city at the time of the case. Furthermore, it's revealed that Natsumi's great-grandmother was Nicholas II's daughter, Maria, and Kid wanted to steal the egg to give it back to her, as she was its rightful owner. During the Russian Revolution, Natsumi's great-grandfather fell in love with her, and the pair eloped to Japan, carrying the eggs with them. When Maria died, Natsumi's great-grandfather used her fortune to build a magnificent castle to act as her tomb.
Kid stops Conan at this point, telling him "some mysteries are better left as mysteries", just as Ran arrives with a towel. Kid then disappears in a flurry of pigeons, while Conan thinks that there is no mystery about why Kid helped him - Ran had nursed his pigeon back to health, and he was merely returning the favor.
After the credits, Ran is seen chiding Conan for not stopping "Shinichi" from leaving. Conan maintains that "Shinichi" said that he will be back someday. Ran, not soothed in the least, performs several karate moves on the towel she had brought for Shinichi, saying that that is what she will do to Shinichi when she sees him again. Conan sighs in relief at how he has not changed back yet or told Ran his identity.
April 21, 2001
