The Girl in the Blue Mask (S01E12)

Cooper and the red cell team are on the hunt for a murderer who grotesquely alters the appearances of his victims. As they delve deeper into the case, they uncover chilling clues and a pattern that leads them closer to the truth. The investigation takes unexpected turns, revealing the psychological complexities behind the killer's actions, and the team races against time to prevent further atrocities. With each lead, Cooper inches closer to understanding the mind of a twisted criminal.