In 1999, Gucheng Prison investigator Luo Weimin (played by Guo Jingfei) accidentally discovered that the serious criminal Wang Guoyan (played by Su Ke) serving in prison was responsible for several suspicious murder cases.When Luo Weimin wanted to further investigate the case, he encountered unexpected levels of resistance. Luo Weimin and his comrade Zhao Zhonghe (played by Li Naiwen) were determined to uncover this heavy shady story. With the help of the old political commissar, the two worked togetherInvestigate deeply.However, just when the truth was about to be revealed, a sudden change occurred, and all Luo Weimin's efforts were in vain.With the launch of the special campaign against gangs and evil in 2018, He Bo, a member of the supervision team, entered the ancient city, and the dusty past was salvaged.In 2021, the education rectification team continued to deepen. With more than ten years of persistent efforts by Luo Weimin and others, the protective umbrella was finally cleared in one fell swoop, the political and legal teams were purged, and the truth was made known to the world.