In Nottingham, England, widow Emma Taylor finds herself in desperate need of a job. She and her beloved daughter Olivia have always managed just fine on their own, but with the legal restrictions prohibiting widows with children from most employment opportunities, she's left with only one option: persuading the manageress at Boots' Booklover's Library to take a chance on her with a job. When the threat of war in England becomes a reality, Olivia must be evacuated to the countryside. In the wake of being separated from her daughter, Emma seeks solace in the unlikely friendships she forms with her neighbors and coworkers, and a renewed sense of purpose through the recommendations she provides to the library's quirky regulars. But the job doesn't come without its difficulties. Books are mysteriously misshelved and disappearing and the work at the lending library forces her to confront the memories of her late father and the bookstore they once owned together before a terrible accident. As the Blitz intensifies in Nottingham and Emma fights to reunite with her daughter, she must learn to depend on her community and the power of literature more than ever to find hope in the darkest of times.