On her twelfth birthday, Qin Lingling fell from the fifth floor of the teaching building and died in front of the birthday party carefully prepared for her by her father Qin Chuan.
The murderers were three of her classmates, but the power behind them turned the intentional murder into an accident.
Qin Chuan, a forensic medicine teacher at the Sichuan-Dong Medical College, spent half his life believing in legal principles and justice. However, in the end, he was forced into a desperate situation by appeals, suppressions, and endless threats. He committed suicide by drowning in a river, leaving only a bloody letter filled with accusations of unfair justice and endless guilt for his daughter.
Lin Yu, who was far away from abroad, resolutely quit his high-paying job in a top biological laboratory and returned to China alone when he saw the news of Qin Chuan's death. He and Qin Chuan were high school classmates and university alumni. They were also people who Qin Chuan pulled into his arms when they were young and have been remembered for the rest of their lives. Qin Chuan's lifelong pursuit of justice was crushed, so he would use his own way to make all evildoers pay with blood.
As several "accidental death" cases occurred one after another in Chuandong City without any flaws, the deceased, without exception, were the people who participated in the Qin Lingling case and forced Qin Chuan to a dead end. The entire city's power network was completely disrupted. Under pressure, the Municipal Bureau urgently transferred Wen Bin back to Huai Province. Wen Bin, the Ministry of Public Security's top criminal investigation talent, is proficient in criminal psychology and holds the most complete original evidence of the case that year. On one side is the bottom line of the law that has been trampled, on the other side are the Abyss Walkers who seek revenge through lynching; on the other side is the intricate black network of power, and on the other side are the precise killings that have occurred one after another.
Can he unravel the mystery?
