Robert Langlois is now married to Catherine, the former housemaid. And they would live happily ever after if the housing crisis did not force them to live together with Gabrielle and Fernand, Robert's parents. For, despite the good will on either side, tension soon arises. What else to expect when there is too little space in their Montmartre apartment for four people (then for six then eight, the couple having... two pairs of twins!) ; the continued presence there of Fernand (who loves peace and quiet) after he is driven to retirement ; the difficult beginnings of Robert as a lawyer in a room of the apartment, etc... Other troubles follow and the harried family is on the verge of implosion...
Robert Lamoureux
Gaby Morlay
Fernand Ledoux
Nicole Courcel
Louis de Funès
Elina Labourdette
Renée Passeur
Madeleine Barbulée
Claire Gérard
Gabrielle Fontan
Michel Etcheverry
Marcel Pérès
Bernard Musson
Robert Rollis
Michel Lallier
François Lallier
Jean Tissier
Jany Vallières
Luc Andrieux
Edmond Ardisson
Christian Brocard
José Casa
Claude Castaing
Henri Coutet
Hubert de Lapparent
Mylène Demongeot
Ariane Dufy
Paul Faivre
Pierre Ferval
Émile Genevois
René Hell
Sylviane Humair
Jean Hébey
Léon Larive
Jean-Paul Le Chanois
Palmyre Levasseur
Sophie Mallet
Dominique Marcas
Jacques Marin
Albert Michel
Jacques Muller
Michel Nastorg
Claire Olivier
Laure Paillette
Eugène Stuber
Jean Sylvère
Eugène Yvernès