Pierre risks being taken advantage of by an agency that sets up financial scams, he escapes thanks to Marcelle, the secretary of the director of the agency, who is a childhood friend. She does her best to keep the young man away from the scams of his boss. However, the director, in love with Marcelle and jealous of Pierre, succeeds in trapping and ruining him. Marcelle will then denounce him to the police, but before being arrested he will kill her.

Noël Roquevert
as Stéfani

Gilbert Gil
as Pierre Durban

Ginette Leclerc
as Marcelle Levasseur

Fernand Charpin
as Colon

Guy Decomble
as Richard

Gabrielle Fontan
as Mme Durban

Annie France
as Jacqueline

René Génin
as Perrin

Franck Maurice
as Un homme de main de Stéfani

Jacques Berlioz
as Le président du tribunal