Story is primarily based on the adventures of Antoine, a young telegraph messenger on his second night of work. He is given three telegrams, one of which is for the president of the Camber of Deputies. Excited, Antoine runs his bicycle into a truck and loses the telegrams. What follows is an amusing and agonizing search for the missing messages. He is assisted first by a glum, wise-beyond-her-years little girl, Amelie; an off-duty police superintendent, a schoolmaster, a cookie-tin maker and a fireman. The harmonica musical theme is played by Flore Falvey.
Gérard Gervais
Eva Simonet
Olivier Hussenot
Christian Fourcade
Henri Crémieux
Jacques Tarride
Germaine Michel
Henri Marchand
Flore Falvey
Lucien Arnaud
Léon Bary
Denise Berley
Jean Berton
Léon Berton
Paul Bisciglia
Jacqueline Carlier
Claudy Chapeland
René-Jean Chauffard
Jean Clarieux
André Darnay
Gérard Darrieu
Guy Derlan
Pierre Ferval
Émile Genevois
Madeleine Gérôme
René Hell
Suzie Jaspard
Nina Lazareff
Marcel Loche
Yette Lucas
Mag-Avril
Franck Maurice
Henri Maïk
Marthe Mercadier
Albert Michel
Frédérique Nadar
Bernard Plumet
Jacques Provins
Yves Robert
Raymond Soukoff