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In the Key of Madness was released on September 22, 2021 but we couldn't find it on any streaming service yet. Rights can change — try again later.
Get the app to be notifiedCast · Directed by Simone Massis
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In the Key of Madness — streaming FAQ
Which OTT platform streams In the Key of Madness?
In the Key of Madness isn't streaming anywhere in United States yet.
Is In the Key of Madness on Netflix?
No, In the Key of Madness is not on Netflix in United States as of September 2026.
Is In the Key of Madness on Amazon Prime Video?
No, In the Key of Madness isn't on Amazon Prime Video in United States right now.
Where can I watch In the Key of Madness for free?
In the Key of Madness isn't streaming in United States yet, so there's no way to watch it free at the moment.
What is the OTT release date for In the Key of Madness?
In the Key of Madness hasn't started streaming in United States yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around November 10, 2021. This is a prediction, not a confirmed date.
