Internal Affairs is a gripping true-crime investigative series from the Dateline team that delves into a complex murder case in northern Colorado. Hosted by veteran reporter Josh Mankiewicz, the podcast explores the intersection of professional duty and personal betrayal, focusing on law enforcement officers whose private lives were defined by deception. The narrative style is methodical and suspenseful, utilizing jailhouse recordings, witness testimonies, and detailed investigative reporting to peel back the layers of a fatal romantic obsession. It is designed for listeners who enjoy deep-dive, long-form storytelling that examines the psychological motivations behind criminal acts and the moral complexities faced by those tasked with upholding the law.