From the endlessly applauded TV series, Detective Conan, comes another exciting feature! Our hero finally meets his match, in a mysterious thief known asMagic Kid. Facing up to the challenge from Magic Kid, Conan and his friend Heiji try to protect the last treasure of the Russian Romanov Dynasty, Memories Egg (a.k.a. Imperial Easter Egg). However, Magic Kids fabulous stealing technique confuses them, and the Egg is stolen.
When Magic Kid is trying to fly away with the precious artifact, a serial killer suddenly shoots him down. Magic Kid disappears, just like a magic, leaving only his white pigeon and the Egg. Now, the treasure is in the hands of the shooter.
A woman, the rightful heir of the precious Egg, tells the secret of her family history to Conan and his friends.
Then, a blueprint of another Egg allows Conan to realize that there is a gadget hidden in the Memories Egg.
This gives Conan a hint that the original egg is kept in the castle full of booby traps, camouflaged by gorgeous architectural designs. Can they successfully restore the valuable egg?