Knock Knock (2015)
A devoted father's kind gesture unravels into a dangerous seduction and a deadly game.
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.
How intense is Knock Knock?
Knock Knock is mildly scary, with graphic gore and strong violence. Emotionally it is heavy. The pace is brisk, and it is a full-attention watch. Rated R.
What Knock Knock feels like
- Tone
- suspensefulgrittychillingpulpy
- Pace
- Brisk
- Best for
- Full attention
Where to stream Knock Knock
US availability via TMDB, last checked Sep 14, 2026. The app filters picks to the services you actually have.
Is Knock Knock for you?
Is Knock Knock scary?
Only a little. Knock Knock has a few tense moments (scare level 1 of 3), nothing that follows you to bed.
Is Knock Knock gory or violent?
Graphic gore (2 of 3) and strong violence (2 of 3). If graphic gore is a dealbreaker, skip it.
Is Knock Knock sad or heavy?
It is emotionally heavy (2 of 3). Expect it to land.
Is Knock Knock OK for kids?
It is rated R, so it is made for adults. Intensity: scare 1, gore 2, violence 2, each out of 3.
How long is Knock Knock?
Knock Knock runs 1h 39m.
Where can I stream Knock Knock?
Knock Knock is streaming on Max.
Does Knock Knock have a happy ending? spoiler-safe answer
No. Brace yourself.
Cast and crew
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