Freddy Bachmüller, a premium winemaker in Austria's Weinviertel, produced top-quality wine - now he is dead. Shortly after, scene operator Ronald Otter is shot in Berlin - he had been offering Bachmüller's wines. If that’s not a case for Berlin and Vienna! Commissioner Bernhardt and Chief Inspector Habel are investigating together again: they argue, tease, and flirt as much as they can - strictly professionally, of course. Bernhardt knew the Berlin victim; they studied together in the seventies. Keywords from that time come to his mind: duty to disobey, fight against the system... However, the conclusions he draws do not align with Anna Habel's initial suspicions. She senses female jealousy in the case of the dead winemaker Bachmüller.