Louisa Clark arrives in New York ready to start a new life, confident that she can embrace this new adventure and keep her relationship with Ambulance Sam alive across several thousand miles. She has been hired by the superrich Gopniks—Leonard and his unhappy, much younger second wife, Agnes—and finds herself amid a never-ending array of household staff and hangers-on. But Lou is determined to get the most out of the experience and throws herself into her job and this very privileged New York life.
As Lou tries to keep the two sides of her world together, she finds herself carrying secrets—not all her own—that cause a catastrophic change in her circumstances. And when matters come to a head, she has to ask herself Who is Louisa Clark? And how do you reconcile a heart that lives in two places?