Those Who Kill (2014)

Catherine Jensen, a newly promoted homicide detective, teams up with forensic psychologist Thomas Schaeffer to hunt down elusive serial killers. As they delve into the dark world of criminal minds, Catherine is also driven by a personal quest: uncovering the truth about her brother's mysterious disappearance. Their partnership combines investigative prowess with psychological insight, leading them through a labyrinth of clues and chilling secrets. Each case tests their resolve and brings Catherine closer to confronting her own past, adding layers of suspense to this gripping crime drama.