London, 2017. When her Granny Sylvie asks for Lucille's assistance with a small matter, she's happy to help. The next thing she knows, Lucille is on a train to Paris, tasked with retrieving a priceless Dior dress. What Lucille finds will have her scouring the city for answers to a question that could change her life. Paris, 1952. As the wife to the British ambassador to France, Alice Ainsley's job is to see and be seen. Her husband showers her with jewels, banquets, and couture Dior dresses, but his affection has become distressingly elusive. When a new face appears in her drawing room, Alice finds herself yearning to follow her heart no matter the consequences.