Louise lives with Remi in Marne-la-Vallee. He is an architect, she is an interior decorator. Their lives would be perfect if Remi were less of a homebody, and if Louise were not such a night owl. Conscious of preserving her independence, Louise rents a pied-a-terre in Paris. Octave, her friend and confidante, is always ready to accompany her during her night prowls. One evening, beneath a full moon, and Octave's jealous, loving gaze, she succumbs to the charms of a sensual dancer. As day breaks she realises, however, that she would much rather be with Remi.