Contractor Norbert Sachringer is found in his wine cellar, skull smashed with one of his expensive bottles, by his wife Sylvia and, first, Tina Förster, whom he hired to assess the wine collection before auction. Commissioners Sven Hansen and Korbinian Hofer quickly get the new widow's admission she had an affair with his exclusive wine supplier Lothar Heisig but both have an alibi, attending a Munich exhibition. Foreman and de-facto firm deputy Christian Hofstetterhatte recently rowed with Norbert, who refused a fitting raise. Hansen finds the wine assessment fascinating. The precinct girls are meanwhile obsesses with winning a wellness weekend by local radio competition “which sound“, contrary to budget instructions to cut down on personal calls.