A historian seeks to clarify the mysterious death of Sire de Malvaleix and will find himself involved in the murder of the current descendant.
Henri Arius
Jules Berry
Professor Barbaroux
Pauline Carton
Madame Barbaroux
Chukry-Bey
Francis Claude
Yvonne Ducos
Lucie Dupleix
Madame de Hennebelle
Alexandre Fédo
Yana Gani
Vanda Gréville
Jim Gérald
Commissioner Plachon
Philippe Hersent
Gérard
Jean Heuzé
The Lieutenant of the Gendarmerie
Roger Hédouin
Marquis
Philippe Janvier
Charles Lavialle
Géo Lecomte
Paul Masque
Milly Mathis
The cook
Simone Paris
Mona Lambelle
Gisèle Parry
Christine
Pierre Passeron
Pierre Stéphen
Orfray
Jacques Tarride
The valet
Michel Dulud
Director
