Su Hai, a former heroic detective, was forced to leave the police force due to a murder case a year ago and became a notorious private detective. However, one day a year later, another similar murder case once again set this heroic detective on a journey of investigation. The murderer a year ago was dead, and who was the murderer a year later? A memory card with wide implications, a provocative phone call, a self-confessed murderer. The murderer is both good and evil. How should Su Hai and his teammates face various challenges?
Conception: