Commissioner Dupin's twelfth case takes us into the world of winemakers, exquisite wines, and to the largest lake in Brittany, the Lac de Grand-Lieu, where the famous cosmetics dynasty Guerlain once resided. Commissioner Dupin and Claire are spending their honeymoon in the Loire, in the dreamy Pays de Retz. The plan is to travel from vineyard to vineyard, indulging in one culinary delight after another. However, a friend of Claire's needs help, and a heinous murder occurs. Could there be a connection? Christian Berkel has worked with directors such as Quentin Tarantino and Paul Verhoeven. In 2018, he published his novel "Der Apfelbaum," in which he tells the story of his family. In 2020, he received the German Audiobook Award for Best Narrator.