The baby is dead. It only took a few seconds. When Myriam, a French-Moroccan lawyer, decides to return to work after having children, she & her husband look for the perfect caretaker for their two young children. They never dreamed they would find Louise: a quiet, polite & devoted woman who sings to their children, cleans the family`s chic apartment in Paris`s upscale tenth arrondissement, stays late without complaint & is able to host enviable birthday parties. The couple & nanny become more dependent on each other. But as jealousy, resentment & suspicions increase, Myriam & Paul`s idyllic tableau is shattered...