Absolute Proof

In the seemingly peaceful ten years, who is dormant and observing? Who is waiting for revenge? The construction of a new laboratory building started, but the body of an unidentified man was dug up in the old factory building of the school. Ma Mingyuan, who had been in prison for ten years, was once again pushed into the whirlpool of public opinion. Ma Bu, who was eager to save his father, began to investigate, and met Zhou Mo, a "young boy" who had once been sympathizers but now turned against him. By chance, the two joined forces again to break the situation. Accidental car accidents, cyanide poisoning, and insiders died one after another. Who designed the murder mystery? When the secret that has been sealed for ten years is revealed, where will the fate of those involved in the game go?