During the Wu Zhou period, the family of the Chief Censor Hu Xiande was murdered, and Wu Zetian ordered Di Renjie to investigate. Di Renjie found that the originally honest Hu Xiande was strangely involved in a major case. Di Renjie couldn't help but suspect that this case might be a case within a case. During Di Renjie's investigation, he kept encountering various strange events, and people related to the case also died strangely one after another. With the ghost soldiers demanding his life, the case was at a dead end, and Di Renjie was shrouded in a huge conspiracy...