Mozart's estranged sister, Madame Maria Anna Berchtold von Sonnenburg (called Nannerl by her family), travels to Vienna to investigate the mysterious circumstances of her brother's sudden death.

The author shares homespun stories on adjusting to life on a ranch in the country and offers a number of recipes, including cowboy calzones, ribeye steak with whiskey cream sauce, Patsy's blackberry cobbler, and Iny's prune cake.