In the intensive care unit, Ed looked happy when he saw Holden, but this time it was Ed's turn to interrogate Holden.Ed had heard about Hall being in the newspaper and was angry that Holden only treated him as a research subject.

Ed asked Holden if he wanted to be an expert in criminal psychology. It took a long time for Holden to admit that he did want to be an expert in this field, but Ed hinted that if you don't get into the tiger's den, you won't get the cubs, and he wants to study psychology.A perverted criminal must first become a psychopath.

At this time, Ed suddenly jumped from the bed to the ground. The tall Ed and the thin Holden stood face to face, and the atmosphere became tense for a time.Holden thought Ed would break his neck, but Ed gave him a deep hug. Holden broke away from Ed and ran out of the custody room.

But how far can Holden, who is on the verge of mental collapse, run? Falling in the hospital corridor, Holden realizes that he is too obsessed with talking to criminals, too obsessed with solving cases, and has been affected by the perverted murderer.psychology, the evil side began to engulf Holden's soul.