A modern detective transforms into a tyrant who was burned to death, and the first thing he does when he wakes up is to investigate the case. Despite his violent personality, he forced himself to "act in accordance with the law" in an era when no one could provide evidence. From the Prince Consort case to the truth behind his original death, he struggled with Pei Wenxuan, the incarnation of "rule by man", for nine years, and finally completed the ultimate trial in the court: the transfer of imperial power, proving that rules last longer than power.