The episode highlights the contrast between "good police work" and Voight’s darker, off-the-books methods.
The true core of the episode lies in the shifting dynamics between Voight, Upton, and .
The episode begins with suffering from extreme insomnia and anxiety, driven by the guilt of killing Roy Walton and the subsequent cover-up orchestrated by Sergeant Hank Voight . Chicago.P.D.S09E04.FRENCH.AMZN.WERip.mp4
Throughout the case, Upton’s mental state deteriorates. Her lack of sleep and the weight of her secret lead to uncharacteristic mistakes, including a moment where she fears she failed to properly search a suspect who subsequently commits suicide in an interrogation room. The Climax: A Secret Revealed
Suspicious of the secret conversations between Voight and Upton, Halstead conducts his own investigation into the night Roy Walton disappeared. He eventually tracks GPS coordinates to the field where Roy's body was buried. The episode highlights the contrast between "good police
When Voight suggests that Halstead doesn't truly know the woman he is sleeping next to, Halstead reacts by punching Voight in the face. Themes and Impact
While working in the early morning hours, Upton and Adam Ruzek respond to an emergency call at an abandoned building known as the "death house". They discover a grim crime scene involving children, which sets off a high-stakes investigation to find a serial abductor. Throughout the case, Upton’s mental state deteriorates
" In the Dark " is widely regarded as a case-heavy installment that excels by focusing on character trauma.