Munich and Vienna: A series of brutal murders of Catholic clergy shocks the public. The victims are tortured and killed in a gruesome manner. Mysterious clues are found at the crime scenes, but no one can decipher them. Detective Jutta Stern and her partner Thomas Neumann are faced with a puzzle. What connects the victims? What drives the murderer? In their investigations, Jutta encounters a wall of fear and silence – but then she uncovers a lead that reaches deep into the past...