After receiving a strange (and unintentional) blackmail call, Conan elicits the help of Heiji Hattori to track down its intended recipient. However, once they find the victim they discover that the perpetrator has stolen his expensive and valuable jewel – a jewel that the mischievous Kaitou Kid desires for himself! Conan and Heiji must once more use their skills of deduction to unveil the identity of the villain and save the valuable prize.
Fudou Academy's Hajime Kindaichi is the grandson of the famous detective Kousuke Kindaichi. Though he often appears to be lazy in school and clumsy, he is actually a modern-day genius with an IQ of 180. Together with his childhood friend Miyuki, Hajime solves the most unsolvable murder mysteries with ease and grace. From missing students to wax museums, there's no case that Hajime Kindaichi can't solve!