The famous detective Ou Qizhi has an unknown secret. No matter what he sees, he can't help but want to formulate a criminal plan. The protagonist Ou Qizhi has an innate talent for crime. No matter what he sees, he can't help but want to make a criminal plan. At one point, he almost couldn't control his impulse to commit crime. Five years later, he became a detective, using his criminal talents to solve cases. No detective understands the psychology of criminals better than him, because he is a born criminal himself. Fortunately, he learned to use his criminal talents to solve cases. No one understands the psychology of criminals better than him. Unfortunately, he, who is slightly famous, has just learned that he has a half-brother - Ou Shengzhi, who has the same amazing criminal talent and uncontrollable criminal impulse as him. Three serial secret room murder cases have left the Windy City police at their wits' end. Since Yu is born, why is Liang born? A battle begins between the two brothers, black and white.