A murder method perfectly recreated brings the sealed “Professor Serial Killings” case back into the public eye after two years. With all the DNA evidence pointing to Gu Linyuan, a criminal psychology professor currently serving time in prison, city criminal investigation squad leader Lu Hanjiang finds himself trapped in an impossible puzzle. How could the real killer strike again under such tight confinement? Is this a flawless copycat crime, or was the original verdict itself a colossal mistake?
Forced to work with the brilliant professor he personally sent to prison, Lu Hanjiang gradually uncovers a conspiracy spanning several years. Every clue points to a new lie, and every truth conceals an even deeper deception. When the seventh lie is exposed, they discover that the true mastermind has long been manipulating the entire police department.
This is a battle of wits against time, and a test of redemption and trust. When the law and justice diverge, and the line between truth and lies grows blurred, two bitter adversaries must learn to trust each other if they hope to clear away the final layers of deception.
