Martin Morel wants to spend Sylvester with both his wife and family and his girlfriend Agnes. So he asks his clumsy friend Bertin to pretend she'd be his wife. But the two can't stand each other... at first.
In this riot of frantic disguises and mistaken identities, Victor Pivert, a blustering, bigoted French factory owner, finds himself taken hostage by Slimane, an Arab rebel leader. The two dress up as rabbis as they try to elude not only assasins from Slimane's country, but also the police, who think Pivert is a murderer. Pivert ends up posing as Rabbi Jacob, a beloved figure who's returned to France for his first visit after 30 years in the United States. Adding to the confusion are Pivert's dentist-wife, who thinks her husband is leaving her for another woman, their daughter, who's about to get married, and a Parisian neighborhood filled with people eager to celebrate the return of Rabbi Jacob.
Ange leaves New York to fly to his native Corsica. His mother is dying and Ange, who was not present when his father died, wishes to be present at her death. In Corsica Ange finds his brother Baptiste who married Maria, the woman he loved. He finds out that his father was killed, but nobody wants to tell him the name of the killer. And finally he finds two killers expecting him.
The vice-minister of Foreign Affairs of Czechoslovakia, knowing he's being watched and followed, is one day arrested and put into solitary confinement by his blackmailers.
Louis-Philippe Fourchaume, another typical lead-role for French comedy superstar Louis de Funès, is the dictatorial CEO of a French company which designs and produces sail yachts, and fires in yet another tantrum his designer André Castagnier, not realizing that man is his only chance to land a vital contract with the Italian magnate Marcello Cacciaperotti. So he has to find him at his extremely rural birthplace in 'la France profonde', which proves a torturous odyssey for the spoiled rich man; when he does get there his torment is far from over: the country bumpkin refuses to resume his slavish position now the shoe is on the other foot, so Fourchaume is dragged along in the boorish family life, and at times unable to control his temper, which may cost him more credit then he painstakingly builds up...
Three little criminals get a tip for a great coup with lots of money in it. Unfortunately they lack the starting funds to buy the required welding torch. So they persuade their successful colleague Alphonse to join their team. But the well thought-out coup fails, and Alphonse is the only one of them who ends up in jail for several years. When he's released, he's out for revenge.
