Celia Dawson and Alan Buttershaw are both widowed and in their seventies. They were attracted to each other in the 1950s, but never expressed their feelings, and Celia moved away with her parents. In the present day, they are reunited after being persuaded to join Facebook by their respective grandchildren. Alan has loved Celia since he was 16 years old, whilst Celia is described as a woman who is "unfulfilled" and was unhappily married to a man she grew to hate. After their reunion, Alan and Celia discover that they still feel as passionately for each other as they did when they were teenagers. Their story is described as a "testament of the uplifting power of love at any age".