The Italian Party by Christina Lynch

In 1956, newlyweds Scottie and Michael Messina move to Siena when Michael gets a job with Ford selling tractors to the locals. In reality, the job is a cover created by the CIA, and Michael's assignment is to prevent the Communist mayor from being re-elected. Scottie knows nothing of Michael's ruse and spends her days learning Italian, eating good food and immersing herself in the local community. Of course, Scottie is also keeping secrets of her own--and Michael, in turn, is hiding even more  about himself. Will their marriage survive all the life changes and duplicity? The Italian Party is a novel with a great sense of place and an interesting story.