Two men found dead on a lonely Brazilian hillside — wearing lead masks and clutching a cryptic note about radiation and a mysterious “signal.”
What really happened to them? Was it science, faith, or something beyond our world?
In this haunting documentary from Biography Plus, we uncover one of the strangest unsolved mysteries of the 20th century — The Lead Masks Case.
From Cold War paranoia to UFO contact experiments, this story has it all: mystery, science, and the limits of human curiosity.
🎧 Narrated in cinematic style for a global audience.
📍 Location: Rio de Janeiro, Brazil
🎥 Watch till the end for the shocking final theory.
#BiographyPlus #MysteryDocumentary #UnsolvedHistory #LeadMasksCase
