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Knock Knock

Directed by Eli Roth · 2015 ·

Short answer

Is Knock Knock worth watching?

Probably not. Knock Knock (2015) earns a 47% Celluloid Score. That is below our 60% Recommended threshold. Critics (37%) were notably more enthusiastic than audiences (28%). See the 4 inputs.

47%
Celluloid Score Not Recommended

4-input transparent breakdown

37% Editorial Rating
28% Audience snapshot · excluded
53 Metascore
★★½☆☆ Letterboxd 2.5
4.9 IMDb /10
0
Watch Trailer
Released
Runtime
1h 39m
Age rating
R (US) · 18 (UK) · A (India) · MA 15+ (Australia) · 18A (Canada)
Cast
Keanu Reeves , Lorenza Izzo , Ana de Armas , Aaron Burns , Colleen Camp , Ignacia Allamand , Antonio Quercia , Dan Baily , Megan Baily
Streaming
HBO Max
Country
Chile
Language
English

Also known as El lado oscuro del deseo Toc, toc Bata Antes de Entrar ノック・ノック 노크 노크 敲敲门 當辣妹來敲門 Yanlış Kapı

Where to watch

  • HBO Max

Rent: Amazon Video, Apple TV, Google Play, YouTube, Fandango at Home, Spectrum On Demand

Buy: Amazon Video, Apple TV, Google Play, YouTube, Fandango at Home

Where to watch Knock Knock by country

Country Streaming on
Japan U-NEXT
South Korea TVING
United States HBO Max

Subscription availability, refreshed from TMDB. Rental and purchase options may differ.

Why this score?

  • Celluloid's editorial rating is reserved (37/100).
  • Audience reception was lukewarm (28%).
  • Celluloid Score 47% combines 4 rating inputs; audience sentiment is shown separately. Consult the source notes for verification dates where recorded.

Best for

  • Short runtime — easy weeknight watch
  • Critics' darlings — stronger with reviewers than general viewers

Not ideal for

  • Anyone needing a safe, highly rated pick
  • Horror fans expecting broad audience validation

Scores reflect data indexed at build time. Component sources are shown on this page; Celluloid Score is our composite, not a third-party trademark. Scoring policy

Streaming availability, artwork and title metadata courtesy of TMDB. This product uses the TMDB API but is not endorsed or certified by TMDB.

Is Knock Knock worth watching?

Probably not — Knock Knock earns a 47% Celluloid Score. That is below our 60% Recommended threshold. It suits short runtime — easy weeknight watch, but anyone needing a safe, highly rated pick may want to skip it.

Celluloid verdict

Eli Roth’s home-invasion provocateur piece — Reeves as a family man undone by a dangerous game.

, Founder & Editor

Critics (37%) were notably more enthusiastic than audiences (28%).

What is Knock Knock about?

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.

Watch the Trailer

Knock Knock stills

Official production imagery supplied through TMDB, kept with the movie instead of split into a thin gallery page.

Knock Knock production still 1
Knock Knock production still 2
Knock Knock production still 3
Knock Knock production still 4
Knock Knock production still 5
Knock Knock production still 6

Images courtesy of TMDB. TMDB does not endorse or certify Celluloid.

Reader takes

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Knock Knock: frequently asked questions

Is Knock Knock worth watching?

Probably not. Knock Knock (2015) has a Celluloid Score of 47%, averaged from the available Celluloid editorial, Metascore, Letterboxd and IMDb ratings. That is below our 60% Recommended threshold. Audience sentiment is shown separately and does not change the score.

Where can I watch Knock Knock?

In the United States, Knock Knock streams on HBO Max with a subscription, and you can rent it from Amazon Video, Apple TV, Google Play, YouTube or buy it from Amazon Video, Apple TV, Google Play, YouTube. Elsewhere: U-NEXT in Japan; TVING in South Korea. Availability changes; the where-to-watch table on this page is refreshed from TMDB.

How long is Knock Knock?

Knock Knock runs 1 hour 39 minutes (99 minutes).

What is Knock Knock rated?

Knock Knock is rated R in the United States, 18 in the UK, A in India, MA 15+ in Australia and 18A in Canada. These are the official classifications as recorded on TMDB; check your local classification board for content advice.

Who stars in Knock Knock?

Knock Knock is directed by Eli Roth and stars Keanu Reeves, Lorenza Izzo, Ana de Armas, Aaron Burns, Colleen Camp.

What is the Metascore for Knock Knock?

Metacritic's Metascore for Knock Knock is 53 out of 100. It is one of the inputs to the Celluloid Score.

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