Coronation Day, 1953. Molly Heywood has always been a pillar of strength for her local community, so when her friend Cassie fails to attend the Coronation Day party in the village, it is Molly who heads out in the rain to look for her. But nothing can prepare Molly for what she is going to discover. Now with Cassie gone and her six-year-old daughter Petal missing, it is up to Molly to head to London to uncover the past Cassie kept so well hidden. But will Molly discover the truth before it's too late? Or has Petal disappeared forever?