Five of America’s most prolific serial killers all operated at the same time. How did Bundy, Gacy, Dahmer, the Green River Killer and BTK evade capture for so long? Part of True Crime on Channel 4.
"Invisible Monsters: Serial Killers in America" — show released in 2025. "Invisible Monsters: Serial Killers in America" is currently available to stream on All 4. Click on a playlink to watch it now!
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