Enter the world of Olivier and Madison Malin, the glittering inhabitants of Paris's most exclusive neighbourhood, the Left Bank. The Malins' life together with their daughter is the stuff of dreams -- and carefully-selected celebrity magazines. Madison is an American film star: her beauty, talent and perfect accent hiding her Texan roots, and the fact she's just turned forty (although that actually happened several years ago). Her husband, Olivier, is the darling of the sophisticated Left Bank: philosopher, gourmand and media personality, he craves adoration (and is a little too willing to return it). Everything seems perfect -- if a touch pretentious -- right up until the moment a new English nanny, Anna, appears at the imposing doors of their Rue du Bac apartment. Gamine and artless, Anna unwittingly sets in motion a chain of events that will gravely endanger the Malins' daughter and their charmed lives - in ways no-one could have foreseen...