A young woman is in love with a young writer, winner of the Prix Goncourt. Married to a banker, she must face her husband's anger and the blackmail of a former suitor.
Where to Watch Promise to the Unknown One
Cast of Promise to the Unknown One
Charles VanelBernard Parker
Claude DauphinJean Cartier
Madeleine RobinsonFrançoise Parker
Henri GuisolDuvernier
Marcel AndréChancellin
Alexandre FabryFather Honoraz
Charlotte ClasisMother Honoraz
Jacques TarrideJeweler
Gisèle AlcéeYoung girl
Manuel GarySailor of the Phocéa
Lucien CallamandBréchard
Robert DalbanCommissioner Andréani
Pierre BrasseurLussac
Nicolas AmatoStation master (uncredited)
Jacques BreteuilAnnouncer (uncredited)
Jean Clarens(uncredited)
Gaston SéverinSecretary of the Goncourts (uncredit)(
André BerthomieuDirector / Writer
Marc-Gilbert SauvajonWriter
Françoise GiroudWriter
Marcel SegardProducer
Suzanne GoosensProducer
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