In October 1984, German food technician Günther Stoll scribbled the mysterious word "YOGTZE" on a piece of paper, crossed it out, and left his home after months of telling his wife that unknown people were watching him. Hours later, he was found critically injured, naked inside his crashed car, claiming he had been with four men before dying on the way to the hospital. To this day, neither his final message nor the events of that night have been fully explained.

In this episode of You Can't Unhear, we explore one of Germany's most baffling unsolved mysteries. Was Günther Stoll murdered? Was he experiencing a severe mental health crisis? Or does the strange word "YOGTZE" point to a clue investigators never understood? Decades later, the mystery continues to puzzle detectives, cryptographers, and true crime enthusiasts around the world.