London centered stories about three women. New York attorney Maddy Heller arrives in 1999 London after having had an affair with Paul, her sister Allie's fiancé to cope with the impending marriage, and Paul's terminal illness. London 1966, Frieda Lewis, Paul's future mother falls for a doomed up-and-coming songwriter knowing he will break her heart. The narrative then shifts further back, to 1952 and to Maddy and Allie's future mother, Lucy Green. A bookish 12-year-old wise beyond her years, Lucy sails with her father and stepmother from New York to London for a wedding. There, she becomes an innocent catalyst to a devastating event involving a love triangle.