Mystery Tracking

On July 12, 1981, the County Public Security Bureau received an alarm call that a major murder had occurred in Yucao Village, Shugou Township. Nine members of the Zhao and Ma families were brutally murdered overnight. The cruelty of the crime was shocking. County Criminal Police Captain Qin Chuan was urgently ordered to lead a team to investigate. However, as the case progressed, things became more and more complicated, bringing Qin Chuan and other crime-solving teams to the brink of life and death. What kind of character has such a background? What is more valuable than human life?