Southern Song judicial official Song Ci, accompanied by autopsy apprentice Qing He, investigates bizarre mysterious cases using the forensic examination and injury differentiation methods from the Washing Away of Wrongs. From the scorched corpse case to the skeleton case, they restore the truth through details such as smoke ash in the nose and mouth, neck bone strangulation marks, and bone surface cracks. The first season consists of ten episodes, each revolving around an independent case, with the theme that corpses leave evidence.