Kogoro Mouri's Imposter ~ Part 1

Kogoro Mouri's Imposter ~ Part 1 (毛利小五郎のニセ者(前編), Mōri Kogoro no Nisemono (Zenpen)) is the 243rd overall episode of the Detective Conan animated series based from the manga of Gosho Aoyama. The episode aired in Japan on July 23, 2001.