A young geometrician goes to Rome with his sister. During the trip, they meet Laura, an actress who offers them many surprises.
Micheline Presle
as Laura Lee
Gérard Philipe
as Gabriel Pégase
Marcelle Arnold
as Hermine
Jacques Louvigny
as L'ambassadeur
Fernand Rauzéna
as Le cambrioleur
Albert Rémy
as Edgar
Marion Delbo
as
Catherine Rochina
as
Mostovoï
as
