Secret Door
Secret Door streams in the US on Rakuten Viki, OnDemandKorea and Kocowa Amazon Channel, as of October 6, 2026.
A re-imagining of the legendary tale of the troubled father-son relationship between King Yeongjo and his only son Prince Sado. While his father insists on a strong and centralized government, Crown Prince Sado promotes social justice and equality throughout the kingdom. Throughout eight fateful years, the strain on their relationship — both familial and political — eventually evolves into a total breakdown, ending with one of the most tragic stories in Joseon history.
Where to watch
9 apps, one package.
This title is not on an app included with Spectrum, but Spectrum Stream TV Signature includes HBO Max, the Disney+ and Hulu bundle, Peacock, Paramount+ and more. Spectrum Internet is required and sold separately.
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Rakuten Viki
OnDemandKorea
Kocowa Amazon Channel
KocowaRakuten Viki
