The nineteenth century is drawing to a close. Pellegrino Artusi, Italy's first celebrity chef, has travelled the length and breadth of the country compiling his masterpiece, The Science of Cooking and The Art of Eating Well. When Baron Romualdo Bonaiuti invites him to his Tuscan home to compare notes with his kitchen staff, he's quite looking forward to a break. On arrival he finds everything one might expect: a dramatic Tuscan castle, eccentric aristocrats, spinster aunts and a mysterious guest. Not to mention a murdered butler. Faced with a menagerie of suspects, the local constabularly are baffled. But when the Baron himself is the target of a second murder attempt, Pellegrino realises he may need to put his celebrated culinary skills to use to find the killer.