This book centers on a reasoning team composed of five investigators with different personalities, unfolding in multiple lines, telling the story of them solving a series of complex unsolved cases in the city and countryside. Each volume directly addresses different social issues and crime types, including serial killers, disappearances, financial fraud, political and business collusion, medical shady affairs, etc. Under the surface of the cases, there are little-known human struggles hidden. The personal backgrounds of each character are intertwined with the main plot, and mutual growth, trust and conflicts advance simultaneously. The team's investigation process not only involves logical reasoning, scientific testing, and in-depth psychological analysis, but is also accompanied by realistic risks and moral tests. In the end, multiple clues merged to reveal a shocking case that had been hidden for many years, as well as a major secret among team members, and promoted the sublimation of the theme - how to choose between humanity and justice in the face of the truth.
