At age thirty-one American Charlotte Merryweather has spent ten years in London pursuing personal and professional perfection. Yet her present-day success- heading her own PR company owning a gorgeous apartment planning a future with her devoted boyfriend- only heightens the shock of a visit from the past. "Lottie " Charlotte's twenty-one-year-old self drives onto the scene at the wheel of a rusty orange Volkswagen Beetle identical to Charlotte's first UK ride. Charlotte pursues a friendship aimed to bestow upon Lottie a decade of wisdom. Yet Charlotte's prosperous polish proves a pale substitute for Lottie's innate youthful graces- openness passion and kindness. Will the student become the teacher in this witty turnabout?