• Air date: 16 Oct '25 8 episodes
      Season 1 peels back the twisted layers of John Wayne Gacy's life while weaving in heartrending stories of his victims; exploring the grief, guilt, and trauma of their families and friends; and exposing the systemic failures, missed opportunities and societal prejudices that fueled his reign of terror.
  • List of Episodes (8)
    • 1. Ten Days

      16 Oct '25
      After a teenager disappears, officers track, interrogate and tail the man he was last seen with.
    • 2. Johnny

      16 Oct '25
      Officers excavate the crawl space beneath Gacy's home; Gacy shows where he disposed of Rob's body.
    • 3. Samuel and Randy

      16 Oct '25
      As police make a shocking discovery, the media circus begins; two teens navigate boyhood in Uptown.
    • 4. Billy

      16 Oct '25
      A psychiatrist interviews Gacy; Tovar and Kozenczak uncover systemic failures; teenage love unfolds.
    • 5. Billy and Dale

      16 Oct '25
      A blizzard buries Chicago; Kozenczak tracks down Gacy's surviving victims; a teen learns sex work.
    • 6. Tim, John and Rob

      16 Oct '25
      In the past, Gacy confesses to Sam how he groomed, sexually assaulted and killed boys and young men.
    • 7. David

      16 Oct '25
      Tovar drives Gacy to court hoping to uncover his kill count; Gacy's grooming of Cram is revealed.
    • 8. Jeffrey

      16 Oct '25
      Jeffrey Rignall's story is told; Gacy's execution day brings protests, reunions and moral debates.