Conan's cover is collapsing in real time, and the Black Organization knows it. This movie strips away the procedural comfort of the TV series and replaces it with genuine dread: the cold precision of Gin, the calculated menace of Vermouth, the suffocation of watching a ten-year-old kid realize he might not survive this case. The serial murder investigation isn't window dressing for fan service, it's the actual mechanism that brings the Organization close enough to kill everyone he's protecting.

Kudo Shinichi is still living as Edogawa Conan, but that life may not last much longer. The Black Syndicate is getting dangerously close to discovering that Shinichi survived. One of its members, Irish, has slipped into the police force and is taking part in a major serial murder investigation. If Conan cannot track Irish down, he and everyone around him could end up dead. The result is a feature-length mystery with action and drama, built around a desperate search for a hidden enemy.