: The mystery revolves around the presence of froth, steam, and smoke found at the scene—specifically from a beer, a cup of coffee, and a cigarette. Detective Wataru Takagi performs experiments to determine how long these elements can remain visible (finding a limit of approximately 7 to 8 minutes) to challenge the suspects' alibis.
: The opening theme is "TRY AGAIN" by Mai Kuraki, and the ending theme is "Koi ni Koishite" by Mai Kuraki. Froth, Steam, and Smoke - Detective Conan Wiki Detective Conan Episode 684
: Katsumoto is found dead in his apartment. The case involves three primary suspects who were with him shortly before his death: a writer, a photographer, and an editor. : The mystery revolves around the presence of