While at a park, Conan and the Detective Boys discover a cat covered in injuries that was abused by someone. They decided to search for the culprit based off the blood and fibers left on the cat`s claws. Meanwhile, the head receptionist is found dead at Bocchan Restaurant. His shirt is strikingly similar to the fibers found in the cat`s claws...

Conan, Ran, Kogoro are joined by Heiji and Kazuha visiting from Osaka at the Suzuki Museum. Suzuki Jirokichi has challenged Kaito Kid to steal the world`s largest conch pearl on display at the museum known as the Fairy Lip, boasting that the gemstone can be seen clearly from all angles. Meanwhile, Kid has already disguised himself among the riot police but is reluctant to act in the presence of two high school detectives and the brilliant Inspector Takaaki. However, just then, a woman claiming to be the real owner of the conch pearl appears.