In Episode 3, the investigation intensifies as detectives piece together the evidence linking Chikatilo to the series of murders. A crucial moment occurs when a witness provides a detailed description of a man seen near one of the crime scenes, which closely matches Chikatilo's appearance. The police set up surveillance in areas where he is known to frequent, leading to a tense confrontation.

Throughout Episode 3, flashbacks reveal Chikatilo's troubled childhood and the deep-seated issues stemming from his upbringing. These moments illustrate his feelings of inadequacy and isolation, which drive his compulsive behavior. His internal struggle is palpable as he grapples with his desires and the societal pressures that exacerbate his violent tendencies.

The detectives in Episode 3 are portrayed as increasingly frustrated yet determined. They conduct interviews with locals and analyze forensic evidence, showcasing their dedication to solving the case. Their interactions reveal the mounting pressure they face from the public and their own personal stakes in bringing the killer to justice, highlighting their emotional investment in the investigation.

In this episode, Chikatilo's psychological state is depicted through his erratic behavior and tense interactions with those around him. He oscillates between charm and aggression, revealing his inner turmoil. His conversations with potential victims are laced with a sense of predation, while his encounters with authority figures show his paranoia and desperation to evade capture.

Episode 3 introduces several significant clues, including a piece of clothing found near a crime scene that matches the description of what one of the victims was wearing. Additionally, a forensic analysis of the crime scenes reveals a pattern in the locations chosen by Chikatilo, leading detectives to theorize about his psychological profile and motivations, which propels the investigation forward.