Mamma Carlotta is thrilled when her granddaughter Carolin starts her training as a hotel management assistant. However, the new hotel in Wenningstedt, Frangiflutti, is also a particularly fine address. When a waiter from the hotel restaurant disappears without a trace, Chief Inspector Erik Wolf takes on the case. He uncovers an incredible story. Meanwhile, his mother-in-law discovers a lead that leads to Italy. It involves wine, a major fraud, a million, and the public prosecutor.