Kate Buckthorn, a sixty-something woman in a predictable marriage, takes a day trip to Florence, Italy, to relive the months she spent there as a college art history student. After visiting all the familiar sights, she returns to her favorite gelato shop where she tosses some coins into the plastic cup of a Roma looking for change. And change is what she gets, literally. After enjoying her triple-scoop gelato, she leaves the shop, magically transformed into her twenty-three-year-old self. Does she stay in Florence and have a fling with a gorgeous Italian hottie, pursuing her painting career in the birthplace of the Renaissance? Or does she return to her unfaithful husband as her younger self?