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.

For Pierre Brochant and his friends, Wednesday is “Idiots’ Day”. The idea is simple: each person has to bring along an idiot. The one who brings the most spectacular idiot wins the prize. Tonight, Brochant is ecstatic. He has found a gem. The ultimate idiot, “A world champion idiot!”. What Brochant doesn’t know is that Pignon is a real jinx, a past master in the art of bringing on catastrophes…