S7, E5: Nadia Mönning, the wife of a renowned heart surgeon from Lübeck, surprises a burglar in her home. She confronts the man with a pistol and prepares to call the police when the intruder reveals himself to be her physiotherapist, Kai Thieme. At that moment, Nadia’s terminally ill father-in-law, Horst Mönning, appears, trying to come to her aid.