Where to stream

Knock Knock

5.420151h 39mRMovieHorrorThrillerCrime

When a devoted husband and father is left home alone for the weekend, two stranded young women unexpectedly knock on his door for help. What starts out as a kind gesture results in a dangerous seduction and a deadly game of cat and mouse.

DirectorEli Roth

WritersEli Roth·Guillermo Amoedo

ProducersCassian Elwes·Larry Spiegel

Where to watch

HBO Max Amazon Channel HBO Max

HBO Max

Availability shown for United States · rights vary by country

Cast · Directed by Eli Roth

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Knock Knock — streaming FAQ

Which OTT platform streams Knock Knock?

Knock Knock is streaming on HBO Max in United States, and available to rent or buy on Amazon Video and Apple TV Store. It's not currently on Netflix.

Is Knock Knock on Netflix?

No, Knock Knock is not on Netflix in United States as of October 2026. It's currently on HBO Max.

Is Knock Knock on Amazon Prime Video?

Knock Knock isn't included with a Prime Video subscription in United States, but you can rent or buy it on Amazon Video.

Where can I watch Knock Knock for free?

Knock Knock is available on HBO Max in United States, but you'll need an active subscription — there's no free option right now.