Miranda Carson's search for her father takes a turn she never expected when she finds herself in London with only a few feeble clues to who he might be. Unexpectedly welcomed into a family that doesn't recognize her, and whom she's quickly coming to love, she faces a terrible decision. Should she reveal her true identity and destroy their idyllic image of her father? Or should she carry the truth home with her to San Francisco and remain alone in this world? Whatever choice she makes during this London Christmas will forever change the future for both herself and the family she can't bear to leave.