After an evening of drinking, six men find themselves in front of The God of the Joke. Distressed to find that people aren't laughing anymore, He gives the six friends a mission: to save the world with the Eleven Commandments of the Joke. The men enthusiastically take on their task. They undertake various tests aimed at pushing the limits of stupidity.

Max is preparing an architecture and landscape competition for the city of Marseille. He is confident, his project is daring but pioneering. The oral is going well. The garden on this square is finally emerging and with it radical changes for the inhabitants as well as for Max whose career is stalling dangerously.

Before being extradited to Africa to stand trial, a notorious Belgian criminal is entrusted to the Marseilles police department for less than 24 hours. But the wily crook convinces bumbling policeman Emilien he's a lowly Belgian embassy employee who got railroaded by the brilliant master criminal.