Scientist, wife and mother of two children, Marie-Claire is fulfilled on all levels. His open relationship allows him to listen to his desires and form intimate relationships with other people. Then there is this new research project on dermal cells and the sexuality that stimulates it. Her long hours of work and pleasure do not prevent her from being there for her best friend who dreams of a family. When a university colleague is pursued by a student, his world ends up shattering. Arguments become common with her partner, while her absences begin to be felt by her teenage daughter.