Sibylle, a young Parisian with long teeth, intends to shine in her new job by buying a hardware store in the Basque Country to set up a supermarket. She imagines that she has “rolled” the old owner but the latter is under curatorship. Sibylle must therefore deal with Ramon, the nephew, to recover his money and sign as soon as possible. Otherwise, the ejection seat is assured. She will soon realize that the Basques do not intend to let themselves be made by a Parisian, however pretty she is.

Each week, Pierre and his friends organize what is called as “un dîner de cons”. Everyone brings the dumbest guy he could find as a guest. Pierre thinks his champ -François Pignon- will steal the show.