Having witnessed with Katharina a conversation between three deaf bus traveler, Doc Weissenböck -who masters sign language- suspects trainee Leo Bergmann may be murdered and insists on an investigation. *His step-brother Florian, stuck in a menial job, was bitterly jealous of the favorite 'golden boy'. Suspects in the deaf people shared home include Svenja Weber, who has a crush on Leo, Felix Anzer and distant Markus Lehnhoff. Furthermore, a developer paid a local ruffian to scare away the residents, whatever it takes.
—KGF Vissers