From #1 New York Times bestselling author Sophie Kinsella comes a witty and emotionally-charged novel that delves into the heart of a marriage—and how those we love and know best can sometimes surprise us the most.

After being together for ten years, Sylvie and Dan have a comfortable home, fulfilling jobs, beautiful twin girls, and communicate so seamlessly, they finish each other’s sentences. They have a happy marriage and believe they know everything there is to know about each other. Until it’s casually mentioned to them that they could be together for another sixty-eight years…and panic sets in.

They decide to bring surprises into their marriage to keep it fresh and fun. But in their pursuit to execute Project Surprise Me—from unexpected gifts to restaurant dates to photo shoots—mishaps arise with disastrous and comical results. Gradually, the surprises turn to shocking truths. And when a scandal from the past is uncovered, they begin to wonder if they ever really knew each other after all.

With a colorful, eccentric cast of characters, razor-sharp observations, and her signature wit and charm, Sophie Kinsella presents a humorous, yet moving portrait of a marriage—its intricacies, comforts, and complications. Surprise Me reveals that there are often hidden layers of a close relationship yet to be discovered.