Dr. Harold Merton, the kindly and caring General Practitioner (GP) for the village of Bellechester, is worried. A near-fatal bout with pneumonia last winter has made him think about the future. If something happened to him, who would take over his practice? Rarely leaving his beloved home in the Shropshire Hills, Harold courageously ventures into 1959 London to find a junior doctor to mentor and who will one day take his place. With the aid of his classmate, Dr. Basil Applegate, who is now Director of Junior Doctors, Harold hatches a plan to discover the most suitable candidate. What could possibly go wrong? Upon his arrival in London, Harold meets a self-assured, young American woman, Emme. Her act of kindness sets off a chain of events that interweaves their lives in a way neither expected. Hidden identities and unexpected changes to plans lead to three memorable days for both Harold and Emme.