Forensic doctor Shen Qing has a secret on the autopsy table - he can "hear" the last words of the deceased. But he told everyone it was an illusion from overexertion.
When the seventh corpse lay on the autopsy table, the deceased said to him: "Lu Zheng's brother did not die for you."
Shen Qing dialed the number of criminal investigation team leader Lu Zheng. This man who never wavered in the interrogation room dropped the pen in his hand on the table when he heard these words.
A serial case brought back old cases from two generations. The fire twenty years ago killed thirteen people, and also burned away Lu Zheng's father's conscience and Shen Qing's father's professional ethics. Nowadays, some people are "paying off debts" one by one in the same way as before, and every corpse is reenacting the way they died in the fire.
At the same time, the portraitist Gu Nian restored a face from an unknown white skeleton - exactly the same as the portrait that his grandmother had painted for thirty years before she died. Vice-captain Zhou Ye chased this face for eight years, and finally discovered that the man was beside them.
Four hands, two lines, a truth that has been buried for twenty years. The case was solved and the person was arrested, but Shen Qing's autopsy report contained his father's name, and Lu Zheng's file contained his father's secret letter.
Do you want the truth or your father?
Do you want justice or love?
Purpose: Open your mouth for the dead and bow your head for the living.