The episode starts when Shinichi, Ran, and Kogoro wake up trapped in a white cubical cell with no recollection of how they arrived there. A letter in the room reveals that an admirer of Shinichi's detective work placed him there to test his deduction abilities. Soon, a panel in the room turns on, revealing with the date June 24, 2010 and a password to key in. Shinichi recalls an investigation that occurred on that day, when a famous photographer murders his lover. The case starts where the famous photographer, Tsubochi Yuhei and Kishi Kousuke was hit by an unknown robber after murdering a model, Aida Momoko who turns out to be Tsubochi's lover. However, Shinichi uncovers the truth that Tsubochi staged a robbery scene to hid the fact that he murdered his own beloved because he assumes she cheated on him with another man. Shinichi also reveals that he killed her due to a misunderstanding as the pictures in Aida's camera reveal a hidden message saying that she still loves him.
Back in the white room, Shinichi keys in the word "I love you" and the door opens. However, it leads to another room with the same panel only with the date September 2, 2010 and a levitating spoon in the center of the room.
カメラマン・坪内は愛人の桃子に別れを告げられたことで激昂し、桃子を殺害。強盗の犯行に見せかけようと画策する坪内は、アシスタントの岸と共に桃子の部屋を出ようとした際、強盗に襲撃を受けたように偽装した。だが、桃子のマンションにあるネイルサロンに蘭と一緒にいた新一も異変に気づき現場に急行。坪内が仕掛けたトリックの矛盾点を暴き出す。入力したキーワードは「アイシテル」。
