Where to watch Fatal Promise (2020) in the UK
Fatal Promise (2020) is currently available to stream in the UK on Kocowa. Last verified on 4 May 2026 by ScreenSearch.
A fierce revenge melodrama about a girl who is pushed to the edge of a cliff while fighting the unjust and a man who breaks his promise with her and starts a family of his own, reuniting 7 years later.
Watch the trailer
Fatal Promise | 위험한 약속 [Teaser-Ver3]
Streaming options in the United Kingdom
Updated daily from The Movie Database. Outbound links open the provider directly.
Last verified: — sourced from The Movie Database. Machine-readable: Markdown · JSON.
Cast & crew
Top-billed cast in Fatal Promise.
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Park Ha-naCha Eun-Dong -
Ko Se-wonKang Tae-In -
Kang Sung-minChoi Joon-Hyuk -
Lee Chang-wookHan Ji-Hoon -
Kil Yong-wooHan Kwang-Hoon -
Kang Shin-ilKang Il-Sub -
Lee Dae-yeonCha Man-Jong -
Kim Mi-jiLegal Team Employee
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Fatal Promise — frequently asked questions
Where can I stream Fatal Promise in the UK?
Fatal Promise (2020) is currently included in subscriptions to Kocowa in the United Kingdom. Sign-in is required to play. Streaming licences change occasionally — ScreenSearch refreshes its data daily.
Are all seasons of Fatal Promise on the same service?
Not always — TV licensing is sometimes negotiated season by season. ScreenSearch shows availability across all seasons on the title's page; for season-specific availability, look at the season picker inside the search dialog.
Is Fatal Promise on Netflix, Disney+ or Amazon Prime Video in the UK?
Fatal Promise is currently included with: Kocowa.
How accurate is this TV series's availability data?
Availability is sourced from The Movie Database (TMDB), which in turn pulls from JustWatch. Listings are refreshed daily. For purchase decisions, the provider's own site is the source of truth.
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