Welcome to Luna City, Karnes County, Texas Population 2,460, give or take! Chef Richard Astor-Hall has decided to become an American, take on a new job, and marry long-time girlfriend, Kate Heisel. His visiting parents are off on a quest for a vineyard of very special grapes, and Miss Letty tells the story of what happened when an émigré scientist from Russia found a refuge with his family in Luna City during the 1930s. Another chapter in the doings of the most perfect small town in this eleventh outing to the most perfect small town in Texas.