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Promise to the Unknown One poster
MOVIE

Promise to the Unknown One

Promesse à l'inconnue
TMDb8.0IMDbView on IMDb ↗1942-10-02· 90 min
ComedyRomance

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.

Top cast

Below are the streaming services currently carrying the movie “Promise to the Unknown One” in Canada, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in Canada can differ from other countries.

Where to watch Promise to the Unknown One in Canada

Netflix
Netflix
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OSN+
OSN+
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Amazon Prime Video
Amazon Prime Video
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Shahid
Shahid
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Watch It
Watch It
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TOD
TOD
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Disney+
Disney+
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Apple TV+
Apple TV+
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Not currently available on the supported providers in Canada.

Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 15 Sept 2026.

Where to watch Promise to the Unknown One by country