On his fiftieth birthday, Serge Charan, a large industrialist overloaded with activities, decides to leave everything to go on an adventure. In a train heading for the Côte d'Azur, he meets six young girls returning to their boarding school. Arrived at their destination, Serge Charan rents, under an assumed name, a villa with a view of the garden of the boarding school. His presence arouses questions and the interest of young girls who are sensitive to his charm. But one of them, Simone, falls completely in love and runs away from boarding school.
Mademoiselle Bressac is a bossy spinster who manages "Le Clos", her estate, with an iron hand. But is she really a bad person? Her manners are abrupt but they only hide a heart of gold. Doesn't she bring up four orphans, Dominique, Fabien, Chantal and Jean? And as if it were not enough, she has accepted to educate another child, her niece Patricia, entrusted to her care by her irresponsible father. Thanks to her, the five young people have grown up in harmony and now they are about to find their place in society. Two of them, Jean and Patricia, who love each other, live only for the estate.
Argan, the imaginary patient, allows himself to be led by his wife and his doctors who take advantage of his weakness. Only his daughter has sincere love for him. He ends up accepting that she should marry the one she loves and not the benet, son of an apothecary, whom he intended for her.