The serial killer precisely removes specific cognitive functional areas in the victim's brain - Ni, Se, Ne, Si, Ti, Fe, Te, Fi, corresponding to the eight MBTI core functions. INTP consultant Lu Chenzhou was forced to step out of the theoretical world. From conflict to tacit understanding with ESTJ team leader Qin Zhao, the true identity of the murderer was gradually revealed during the investigation. The murderer's goal was not to kill people, but to collect "perfect specimens" to synthesize a "personality-clearing virus" that would make all human beings lose their personality differences. Lu Chenzhou must stop him before all eight victims are killed. Who is the murderer? ? ?
