Helen is a writer in new york. She likes reading old books. In the era of material poverty, she found spiritual sustenance in reading. However, the bookstore in new york has never been able to meet her needs. Therefore, the advertisement of an old bookstore in London quickly attracted her. Since then, she and Frank, the director of the bookstore, and all the employees have started the process of ordering and buying books by letter for decades, as well as the exchange of hearts and emotions …