Bertal, a despotic and hated theater director, is assassinated before a performance of Macbeth in which he was to play with Aurélia Nobli, his companion and Ludovic Arn, her lover. The police arrive on the scene and the investigation begins. Suspicion first falls on Sigurd, an old actor who had threatened Bertal. But parallels appear between the characters in the play and the actors who play them.
Michel Barsacq
Edmond Beauchamp
Pierre Brasseur
Michel Simon
Paul Barge
Monelle Valentin
Jean Brochard
Olivier Hussenot
Lucien Blondeau
Louis Bugette
Daniel Cauchy
Gérard Darrieu
Jacques Denoël
Jacques Dufilho
Michel Etcheverry
Henri Gaultier
Madeleine Geoffroy
Gabriel Gobin
Françoise Goléa
Pierre Goutas
Michel Herbault
Katherine Kath
Benoîte Labb
Paul Laurent
Robert Le Béal
Serge Lecointe
Robert Le Fort
Robert Lombard
François Marié
Paul Mathos
Geneviève Morel
Jean-Paul Moulinot
Hubert Noël
André Numès
Marcel Pérès
Jacques Rispal
Christian Simon
Georgette Talazac
Catherine Toth
André Versini
Noël Roquevert
Jacques Beauvais
Charles Bouillaud
Georges Demas
Rudy Lenoir
Raymond Pierson
Louis Saintève
Françoise Soulié
Eugène Stuber