I Owe You One is a gripping novel by Sophie Kinsella that tells the story of Fixie Flo, who keeps getting things mixed up in her life. After she saves a stranger in a cafe, he thanks her with a coupon for a service that she can use in the future. This coupon turns Fixie's life upside down, as she begins to use it as a wing to achieve her dreams. But can you count on a happy ending with this coupon, when unexpected love relationships and family secrets enter the web of her life? "I Owe You One" is a humorous and at the same time moving story about the obstacles and opportunities that fate can present to us.