When a well‑dressed man was found lifeless on an Australian beach, authorities were left with more questions than answers. No identification. No witnesses. No clear cause of death. And tucked inside his pocket, a cryptic clue that only deepened the mystery.

For decades, investigators, scientists, and strangers around the world have tried to uncover who he was and why his life ended in silence. This episode unravels a story of secrets, dead ends, and a search for identity that refused to fade.