Rene is the concierge of a grand Parisian apartment building on the Left Bank. To the residents she is honest, reliable and uncultivated - an ideal concierge. But Rene has a secret. Beneath this conventional facade she is passionate about culture and the arts, and more knowledgeable in many ways than her self-important employers. Down in her lodge, Rene is resigned to living a lie; meanwhile, several floors up, twelve-year-old Paloma Josse is determined to avoid a predictably bourgeois future, and plans to commit suicide on her thirteenth birthday. But the death of one of their privileged neighbours will bring dramatic change to number 7, Rue de Grenelle, altering the course of both their lives forever.