The grandson of legendary detective Kaneda Ikkosuke Kaneda Ichiyi (played by Ryosuke Yamada), is now attending a private high school with childhood sweetheart Miyuki Nause (played by Haruna Kawaguchi). They are also members of the Detective Department.Nanase has excellent academic performance, and Kaneda has a heart that is full of boredom, and her youth is happy and worry-free.On this day, Nanase was pulled into the film department by the famous director Akira Mitsuko (played by Kamiki Takanosuke) to film. Unexpectedly, a series of strange murders caused ghosts in the film department.The police department of the I-Search Department, Ken Chiyong (played by Yamaguchi Tomohiro) and his new subordinates intervened in the investigation, while Kanedaichi identified the real murderer through meticulous reasoning.After that, the original film department was disbanded and the reasoning department, whose personnel grew, laughed and laughed.In the days that followed, one meticulously created murderous plot after another will be presented to Kinda Ichi and his friends one after another... This film is adapted from the original work of Tianshu Zhengmaru.