A secret court case caused Shen Zhui, a forensic doctor who is proficient in modern criminal investigation techniques, to accidentally travel back in time and become a scholar in the Dajing Dynasty who was convicted of investigating the case and was on the verge of death. The original owner was framed because he insisted that the son of the county magistrate did not hang himself. After being greedy for ink and being beaten, the newly born Shen Zhui dragged his sick body out of the prison, determined to pay tribute to the dead souls with the truth, and also fight for a way out for himself. With his keenness in traces and stubbornness in logic, he returned to the prison where he was kidnapped on a rainy night. The fake scene, from the dust blowing from the beams to the subtle secondary strangulation marks on the deceased's neck, peeling off the carefully arranged disguise bit by bit, the pressure of the county magistrate, and the silence of the real murderer, cannot stop the ink pen in his hand to restore the truth. This is not the inspiration of genius, but the difficult progress based on evidence every step of the way. Starting from a seemingly simple "suicide" case, Shen Zhui will write his own legend of chasing the murderer in this foggy ancient times.
