The attractive Béatrice Laune has a brilliant career, recently crowned with the award for best advertising creativity of the year. A well-deserved reward, as Béatrice has devoted her entire life to her work. The only fly in the ointment is that, for some time now, the young woman has been fainting every time she is confronted with a baby! The medical diagnosis attributes these episodes to a repressed desire to have a child as she approaches her 40th birthday. This situation disturbs Béatrice to the point where she becomes fixated on one idea: having a baby for her 40th birthday!