The traffic police investigated drunk driving and opened the passenger door. Under the blood-stained clothes, key evidence of a family murder case that had lasted for ten years was hidden. The intervention of forensic doctor Lin Zhuo revealed the truth about her father's suicide, and also brought out the confession and lies of Zhao Tieqiao, the head of the case investigation team. The sins under the wheels have not been extinguished. Zhou Ye, the silent man in the passenger seat, is spending ten years of blood and tears in exchange for a way out; and deputy director Chen Yan's black hand has already reached out to everyone who dares to pursue the truth. When Shen Li's wine bottle shattered in front of Lin Zhuo's microscope, they realized that the blood that night was not an accident, but the price of the transaction.