The series "Devil in Disguise: John Wayne Gacy" is currently streaming exclusively on Peacock. It premiered on October 16, 2025, and all eight episodes were released simultaneously. This dramatized true-crime limited series delves into the life and crimes of the infamous serial killer John Wayne Gacy, focusing on his victims, their families, and the investigation that ultimately captured him. To watch, you need a Peacock subscription, which offers two plans: the Premium plan with ads at $10.99 per month, and the Premium Plus plan without ads at $16.99 per month. There is also an option to subscribe annually for a lower effective monthly rate. The series can be accessed on any device that supports Peacock. For first-time subscribers, Peacock often provides a seven-day free trial through Prime Video, which can be used to watch this series. "Devil in Disguise: John Wayne Gacy" stars Michael Chernus as Gacy and features a cast that includes Gabriel Luna and Marin Ireland. It is based on a 2021 documentary and explores the systemic failures that allowed Gacy's reign of terror while giving voice to his victims' stories.