The podcast episode, The Haunting of Gilgo Beach: Unmasking the Long Island Serial Killer, recounts the discovery and investigation of the Gilgo Beach murders, a case that has captivated the nation for over a decade. The episode details the chilling discovery of multiple sets of human remains along the Long Island coastline, the frustrating dead-ends in the investigation, and the subsequent arrest of Rex Heuermann, an architect suspected of being responsible for these heinous crimes. The episode explores the timeline of events, the challenges faced by investigators, and the impact of the murders on the victims' families, while highlighting the role of advanced forensic technology in bringing the case to a potential resolution.