Monsieur Le Trouhadec saisi par la débauche

M. Le Trouhadec, an eminent professor at the College de France, is none the less naive, even senile. Infatuated with Mademoiselle Rolande, a young actress, he stays incognito in Monaco to try to approach her. When he meets Mr. Benin, an acquaintance, the latter tells him that he knows Rolande. The beginning of trouble for the poor teacher...