Bill Tenge, who is over 40 yearshas been speaking to police stations in various places. He talked about the detection process of classic cases and the crime patterns summarized from various cases. Hall Den Fordwas originally a field agent. He encountered a difficult problem during a case and was transferred to the same job as Bill. The two who were both interested in studying criminal psychology eventually persuaded the leaders to let them set up a behavioral science department in the basement on the grounds that "understanding the madman's heart can better catch the madman." Subsequently, Wendy Carra psychology professor who was interested in their workalso joined the working group.
Holden and Bill's daily work is to go to prison to chat with various perverted murderers, to understand their mental journey, their own cognition and their social cognition. Every "crazy" makes them, especially Holden, refreshed their understanding of "perversion". They have to find the "truth" from these sincere or hypocritical, passionate or joking words, and then make A set of "mental models". At the beginning, the FBI agents who thought they were in control of the whole situation gradually realized that things were not as they thought, and they had been running on a normal track.
