A perfectly recreated murder technique brought the "Professor Serial Murder Case" that had been dusty for two years back into the public eye. When all the DNA evidence pointed to Gu Linyuan, a professor of criminal psychology who was serving a sentence in prison, Lu Hanjiang, the captain of the city's criminal investigation detachment, found himself trapped in an impossible puzzle: How did the real murderer commit the crime again under heavy imprisonment? Was it the perfect copycat crime, or was the verdict itself a huge mistake two years ago?
Forced to work with the genius professor he personally sent to prison to solve the case, Lu Hanjiang gradually uncovered a conspiracy that spanned several years. Every clue points to a new lie, and every truth is wrapped in a deeper deception. When the seventh lie was exposed, they discovered that the real mastermind had already manipulated the entire police station.
This is an intellectual game against time, as well as a test about redemption and trust. When law and justice run counter to each other, and when the line between truth and lies blurs, two equally powerful opponents must learn to trust each other in order to uncover the final mystery.
