An officer struggles to solve a murder case despite being at odds with his lieutenant. Officer Tetsubei discovers the body of a man whose face has been crushed and his fingerprints erased. Tetsubei describes the circumstances surrounding the discovery of the body, including his own theory, and is angered by Lieutenant Yukari. That night, Tetsubei visits the shop of Kanako, whom he has a secret crush on. There, Mizutani, Kanako’s husband, who has been missing for seven years, appears.
Original title 巡査鉄兵の推理日誌