At the beginning of the year, a costume ball takes place at Café Heller in Floridsdorf. The highlight is supposed to be a magic show at midnight, along with "Brüderlein fein" from Ferdinand Raimund's "Bauer als Millionär." However, everything goes wrong. Some guests receive a laxative in their welcome drink, money and jewelry are stolen, and after the midnight performance, the perfume producer Rainer Kerschbaumer is found strangled in his car in a nearby parking lot. The circle of suspects is large. It's not an easy case for head waiter Leopold...