Seniors home "Goldener Herbst" queen of the annual ball Annemarie suddenly collapses on the floor from a fatal morphine overdose, which must be administered by one of the ball guests. So the team looks into stylist Joel Meinhardt, who must compensate for low prices by cheating, recently recruited janitor Markus Meiser who fails to lock up the keys, regularly visiting GP Dr. Schuhmann, fellow resident Veronika Berger, even her lover Roland Schelling, whom commissioner failed to arrest despite persisting suspicion for a jewelry heist 25 years ago, which finally gets solved. The motive is the key.
—KGF Vissers