Every wednesday night a few guys have a meal together. There is a game coupled with the meal: each one of them has to bring an "idiot". The game consists in making the idiots talk about there ideas and passions so that the hosts can have a good laugh. At the end they will choose the "idiot of the evening". One of the hosts has invited his idiot home so they could go to the dinner together, but unfortunately he gets a severe pain in his back due to an accident that day and can't go to the "meal of idiots". Even worse is the fact that the idiot tries to help him all the time, and naturally does everything wrong and aggravates every situation.<br><br>Le Mercredi, pour Pierre Brochant et ses amis, c'est le jour du dîner de cons. Le principe est simple:chacun amčne un con. Celui qui a dégoté le plus spectaculaire est déclaré vainqueur. Ce soir, Brochant exulte. Il a trouvé la perle. Le con idéal. "Un conde classe mondiale!" François Pignon, comptable au Ministčre des Finances, passionné de modčles réduits en allumettes. Mais ce qu'il ne sait pas, c'est que Pignon est un fieffé porteur de guigne passé maître dans l'art de déclencher les catastrophes...