Secret Door
Ham Jae-kyeong, a successful adult web novel writer, suddenly finds herself in a slump. She rewrites her writing and characters keep overlapping. Se-hee, the CEO of a web novel company, is Jae-kyeong’s friend. Se-hee suggests to Jae-kyeong that she write a SM novel as a way to overcome her slump. At first, she refuses, but after being persuaded by her assistant writer, Gi-dong, she meets Seong-soo, who enjoys SM play. Jae-kyeong is drawn to the handsome and well-mannered Seong-soo. Is he researching for her novel or is he in a relationship? Growing increasingly captivated by Seong-soo’s charm, she begins to embrace SM play.
Below are the streaming services currently carrying the movie “Secret Door” in the United Kingdom, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in the United Kingdom can differ from other countries.
Where to watch Secret Door in United Kingdom
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Not currently available on the supported providers in United Kingdom.
Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 25 Sept 2026.