Two women, two lives, divided by an ocean – and a secret hidden for 75 years. London, 1939, Sylvia marries her sweetheart, Harry, in the days before he’s sent to war. It will be four, long years before she sees him again. When she takes a job at the mysterious Bletchley Park, Britain's code-breaking HQ, her life becomes a web of secrets, lies and temptations, shadows that will follow her forever. In 2019, Fiona McCloud is struggling to make ends meet in her small Iowa town but has big dreams of a more glamorous life. In private, the plus-size woman fantasizes about being Marilyn Monroe. In reality, she’s a part-time hairdresser and beautician at the Cedars Retirement Village. Fiona’s favorite resident is 97 year-old Dolly. The world thinks Dolly is disgraceful, with her octogenarian lover and addiction to fast cars. And then there’s Joe Fox, the sulky and sensual gardener, a Native American with flowing black hair and wary eyes. When Dolly decides to take a road trip to Las Vegas, she persuades Fiona and Joe to come with her. They don’t know that Dolly has an ulterior motive, or that this journey will change their lives.