In a castle of the Tuscan Maremma near the Bolgheri of Giosuè Carducci, arrives on a June 1895 Friday, the bulky and baffuto Pellegrino Artusi. The fame of his famous "science in the kitchen and the art of eating well" preceded him, "the lively and cultured kitchen manual, first of this kind, with which he invented the Italian gastronomic tradition. But that of Gran Cuoco is a notoriety that does not really enjoy it to the castle, where the family of the Romualdo Bonaiuti baron dwells, a group tenaciously dedicated to nothing. The two male sons, Gaddo, amateur poet who always hopes to meet Carducci, and Lapo, Hunter of servants and peasants; The daughter Cecilia, of talented but bent to women's occupations; The old baroness hope that watches over her from her wheelchair; The lady of company that would only like to be invisible, and the two zitelle cousins. In addition, the numerous servitude, on which the brilliant cook stand out, the Teodoro butler, and the alter and busty Agetan waitress. At the same time, Mr. Ciceri has reached the castle at the same time, a photographer: what came to do at the castle is not clear, as in truth even the artusi. In this humane and a little suspected Entourage, the crime is cold. Teodoro is found poisoned and shortly after a scooted seriously hurts the Romualdo baron. The suspects follow the simplest road towards the poor Agatine. It will be artusi pilgrim to give the police delegate the tips to find the right track.