Detective Conan: Head-to-Head Match with the Black Organization! A Dual Mystery on a Full Moon Night

One day, Kogoro receives an invitation to an "out-of-season Halloween party" that contains a death threat. Kogoro takes it as a challenge to himself and immediately heads to the venue with Sonoko. Meanwhile, the same invitation has arrived at Shinichi's house. Moreover, it seems that the sender has realized that Shinichi and Conan are the same person.