Where to watch
Not available in United Kingdom
Streaming in 3 other countries
The Key isn't on any streaming service in United Kingdom right now, but it's available in Japan, South Korea, Taiwan. Streaming rights are licensed per country.
Cast · Directed by Hiroki Inoue
More from Shingo Mizusawa · Lead actor
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Wakako Zake
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More from Yuki Mamiya · Co-star actress
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See all fromYuki Mamiya
More from Hiroki Inoue · Director
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The Key — streaming FAQ
Which OTT platform streams The Key?
The Key isn't on any streaming service in United Kingdom yet, but it's available in Japan, South Korea and Taiwan. Streaming rights differ by country — switch your country in the header to see where.
Is The Key on Netflix?
No, The Key is not on Netflix in United Kingdom as of October 2026.
Is The Key on Amazon Prime Video?
No, The Key isn't on Amazon Prime Video in United Kingdom right now.
Where can I watch The Key for free?
The Key isn't streaming in United Kingdom yet, so there's no way to watch it free at the moment.
