 
                                                                105 minutos
Louis Bourdin est employé à la RATP le jour, romancier la nuit, avec une forte prédilection pour le genre policier. Un jour, il rédige un polar situé dans l'univers de la RATP, boudé par les éditeurs. Le livre parvient alors aux yeux d'une bande de criminels...
 
                                                        Bourvil
Louis Bourdin, metro ticket puncher and writer
 
                                                        Paul Meurisse
Paul Filippi, gentleman crook
 
                                                        Françoise Deldick
Angélique, metro ticket puncher
 
                                                        Daniel Ceccaldi
Félix Pignol, metro ticket puncher colleague
 
                                                        Bernard Fresson
Person in charge of the finance carriage
 
                                                        Henri Piégay
Luc, Filippi's henchman
 
                                                        Roger Carel
Mr. Souvestre, station chief
 
                                                        Jacques Legras
Postman
 
                                                        Philippe March
Filippi's henchman
 
                                                        Georges Audoubert
Armed security guard
 
                                                        Jacques Plée
Switchman
 
                                                        Françoise Lebail
Waitress
 
                                                        Tsilla Chelton
Newspaper seller
 
                                                        Pierre Vernier
Armed security guard
 
                                                        Menahem Shuval
Giant released
 
                                                        Pierre Richard
Filippi's brown accomplice
 
                                                        Jacqueline Johel
Station ticket office clerk
 
                                                        Yves Arcanel
Filippi's blond accomplice (uncredited)
 
                                                        Paul Bisciglia
Metro machinist (uncredited)
 
                                                        Katia Christine
Brigitte de Ganimard (uncredited)
 
                                                        Roland Giraud
Man waiting on the platform (uncredited)
 
                                                        Gérard Hoffmann
Boss of the bistro (uncredited)
 
                                                        Dominique Zardi
Customer of the Bowling bar (uncredited)
 
                                                        Alex Joffé
Traveler on the Quai de la Rapée (uncredited)
 
                                                        Albert Michel
Station chief (uncredited)
 
                                                        Juliette Mills
Ganimard's switchboard operator (uncredited)
 
                                                        Charles Tordjman
Prisoner of "La Santé" (uncredited)
 
                                                        Paul Pavel
Machinist (uncredited)
 
                                                        Gilbert Servien
Traveler on the Quai de la Rapée (uncredited)
 
                                                        Paul Temps
Maître Loriot (uncredited)
 
                                                        François Valorbe
Director of the R.A.T.P. (uncredited)
 
                                                        Jacques Bouvier
Clarence, driver (uncredited)
 
                                                        Pierre Raffo
Driver of the finance carriage (uncredited)
 
                                                        M. Choura
(uncredited)