Cases keep cropping up in City A, Country Z. Forensic pathologist Linghu Changsheng and detective Zhou Zhengren team up to investigate. While looking into the case of the woman found dead in an iron barrel, they face pressure from their superiors and interference from public opinion. In the course of their arduous investigation, they unexpectedly uncover crucial clues. These clues help them connect the evidence, with details such as fibers and DNA pointing toward suspects. They find a way forward through the maze of cases, in stark contrast to the investigation’s deadlock. In the end, they are bound to expose the vast conspiracy behind it all and bring the truth to light.
