In a skyscraper in Tokyo, a group of characters gathers to celebrate the inauguration of a new and spectacular building designed by a famous architect. Among them is the young detective Conan Edogawa, who, despite his childlike appearance, cannot resist the temptation to investigate a mysterious message suggesting that something dark looms over the celebration.
As the guests enjoy the evening, an unexpected turn of events turns the party into a real battlefield. An enigmatic villain has set up a series of deadly traps, endangering the lives of everyone present. Conan, with his cleverness and detective skills, needs to act quickly. However, he not only has to deal with the guests' panic but also must uncover the attacker's identity before it’s too late.
As the dangers escalate and the countdowns become more intense, Conan must unravel a maze of clues and lies that could cost the lives of his closest friends. With the help of his loyal companion, the detective Ran Mouri, and the support of some of his pals, he embarks on a race against time. In a desperate attempt to save everyone, Conan is forced to confront his own fears and the dark past that haunts his enemy, uncovering secrets that will change everything they know.