During the Republic of China era, the largest arms factory in the country was involved in a bizarre homicide, where the deceased was killed by a "ghost bullet" - the bullet could not be found at the crime scene. For a moment, there was a cloud of suspicion and anxiety, making this case the first extraordinary case of the Republic of China. This case was handed over to the administrative police officer Songdong Road, who is responsible for managing archives within the police station, for investigation (played by Liu Qingyun),
During the Republic of China era, the largest arms factory in the country was involved in a bizarre homicide, where the deceased was killed by a "ghost bullet" - the bullet could not be found at the crime scene. For a moment, there was a cloud of suspicion and anxiety, making this case the first extraordinary case of the Republic of China. This case was handed over to the administrative police officer Songdong Road, who is responsible for managing archives within the police station, for investigation (played by Liu Qingyun),