Pierre Tchernia

When he investigates his daughter's disappearance, a bookseller discovers an underground society, living literally under the streets of Paris. (imdb)

Doctor Galipeau has a brother, Emile, whose wife has just given birth to a baby boy and who dreams of owning a house. He has just examined Louis Martinet, an old man who, according to him, is in the last stages. That is why he advises Emile to purchase Martinet's house for an annuity. Unfortunately for the Galipeaus, not only does Martinet recover but, month after month, year after year, the "dying man" proves hale and hearty as well! (imdb)

An overly ambitious young man hopes to rise to the top of the advertising business. When he feels his progress is being impeded, he conspires to murder his way up the corporate ladder. He uses the bodies of his victims as rungs to climb to the top in this macabre comedy of errors. (Allmovie)

Michaud (Michel Serrault) is a timid and anxiety-ridden security-systems technician who is prone to daydreams like Walter Mitty. Continually teased by his colleagues and his taunting alter ego, Michaud is victimized by a fellow employee who tries to implicate him in a bank robbery. He emerges from his emotional isolation and daydreams to help trap the crooks. (Allmovie)

Marcel, a simple-minded factory worker, is tricked into buying a high-priced American convertable car by a widow determined not to let it fall into the hands of her late husband's secretary/secret lover. Once in pocession of the car, Marcel only encounters one bad luck episode after another with the excessive gasoline consumtion, his wife trying to sell it to make ammends meet, getting into traffic jams, accidently riding into a car wash with the top down, and more. (imdb)

A French rugby supporter in England for a match at Twickenham is knocked out and loses two teeth. He goes to the dentist and during waiting he wears a uniform of another patient, a police officer. He saves by chance Diana Dors, a nextdoor movie star. He is congratulated by his chiefs who take him for true police officer. Many misunderstandings follow after. He becomes lost in London. Not speaking a word of English, he needs to return home to France urgently as he is due to be married.