Whether it is a glamorous public figure surrounded by stars, or an ordinary person struggling to survive in an ordinary industry, there are thousands of thoughts hidden under the humble appearance. Once the dissatisfaction in their hearts breaks out, they will turn into demons that take people's lives. Although they carefully design the killing bureau, once they encounter the gentleman detective Furuhata Rensaburo (played by Tamura Masakazu), all crimes will be exposed to the world. The popular comedian Yale (played by Ichikawa Somegoro), the respected village chief Araki Kaemon (played by Matsumura Tatsuo), the famous novelist Anzai Heng (played by Tsukawa Masahiko), the art researcher Tai Shuzo (played by Tamaki Koji)... more secret thoughts, more cunning puzzles and more diverse crime scenes. Detective Furuhata and his partner Shintaro Imaizumi (played by Nishimura Masahiko), detective Saionji Mamoru (played by Ishii Masanori), and the ubiquitous Mukushima (played by Kobayashi Takashi) jointly carry out superb reasoning that is amazing!