Sophie Mallet is the lively manager of a detective agency, assisted by Emile Gachit, her conscientious but not very effective right-hand man. One day a fellow named David entrusts her a pack of cigarettes that she is supposed to hand over to a certain John Smith. But David soon disappears while John Smith is murdered. Moreover, a lot of dubious characters prove "very interested" in the pack of cigarettes... Which will keep Sophie and Emile for some time...!
Sophie Desmarets
Darry Cowl
Paul Guers
Christian Alers
Suzet Maïs
Bernard Dhéran
Suzanne Dehelly
Armand Bernard
Alain Quercy
Thomy Bourdelle
Georges Demas
Robert Vattier
Gaston Woignez
Paul Demange
Eric Husberg
Michel Etcheverry
Georges Guéret
Guy Dakar
Noël Roquevert
Nelly Beguin
Albert Médina
Jean Droze
André Virlojeux
Edith Guery
Marie Sergent
Mac Donald
Thomas Maïk
Gousti-Mala
Jean Blancheur
Raoul Servian
Jacques Mayar
Charles Bernier
Jacques Stabel
Jacques Fabbri
Marcel Loche
Franck Maurice
Suzanne Grey
Victor Guyau