A child and his father come to Kogoro's office claiming the child saw a popular musician, now dead, be thrown over a bridge by someone. A TV news report soon after confirms the child's story. Based on the child's description, Conan, Ran, and Kogoro must figure out who killed the musician. At the same time, Conan begins connecting Eisuke to Rena, also known as Kir, of the Black Organization.