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Castle Sinister poster
MOVIE

Castle Sinister

TMDb3.4IMDbView on IMDb ↗1948-02-19· 49 min
HorrorThriller

During the War, a British agent travels to the remote Glennye Castle in the wilds of Scotland to investigate a mysterious murder by a masked phantom. Who or what is the phantom? And how are the Germans involved?

Top cast

Below are the streaming services currently carrying the movie “Castle Sinister” 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 Castle Sinister 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: 14 Sept 2026.

Where to watch Castle Sinister by country