Chotard (Charpin) is in the grocery business. After a ball, his daughter marries a poet, much to her father's annoyance. The son-in-law is no good at anything, not even weighing ham, and giving sweets for free to the children in the neighborhood.
Out of the blue, the young poet wins the Goncourt Prize ! His wife's family changes overnight. Now Chotard is so proud of the writer he begins to read and urges his clerks to do the same.
The winner seems to be sick and tired of working overtime and he sees his father-in-law's shop going bankrupt. There's a lot of improvements to be made in this work too. So now grocery and poetry will walk hands in hands.
Source : IMDb