During the Tiansheng period of the Northern Song Dynasty (the early period of Renzong, when Empress Dowager Liu was in charge of the government behind the curtain), Bianjing City was prosperous on the surface, but undercurrents were surging. A series of serial murders with cruel means and a sense of ritual occurred one after another. The identities of the deceased were different, and a blood-stained incomplete jade and a strange scent of ink were left at the scene. A former government official who offended the powerful due to his straightforward judgment of the case and was demoted to the bottom of the Tidian Prison Department (or Kaifeng Mansion) was forced to be involved in the case by virtue of his proficiency (or similar knowledge) and keen insight into the "Resolution of Injustices". He must quarrel, obstruct and even blame various forces (the Queen Mother's Party, the Imperial Party, nobles, Jianghu, and mysterious organizations) to uncover the truth of a murderous case that uses murder to cover up a shocking political conspiracy and points directly to the secrets of the royal family. And he himself may have been an abandoned piece in this chess game.