Su Qingyue, a top female forensic doctor, accidentally traveled to the Southern Song Dynasty and used her professional skills to speak out for the unjust dead. However, she was repeatedly questioned because of her identity as a woman. She went through a tortuous process from confrontation to cooperation with the current executioner Song Ci.
From the mysterious death of a courtesan to a murder caused by fraud in the imperial examination, there are hidden connections behind each independent case, pointing to a huge conspiracy against the imperial court.