Three French tutors meet at a small café that spills out onto the sunny Parisian backstreet of Rue du Paradis. Nico, Philippe and Chantal meet here every Wednesday morning, before leading their students along the grand boulevards, winding alleyways and sweetly perfumed jardins of the city of lights. But today's lesson will be very different - and none of them are remotely prepared. In the haze of a Paris summer, long-buried secrets rise to the surface and relationships are challenged. Can the lessons learned in one day change all of their tomorrows?