Is Knock Knock appropriate for children?

# Knock Knock - Parent Guide This R-rated thriller contains strong violence, language, and sexual content as two women manipulate a married man home alone. The intense psychological horror and disturbing scenes make it unsuitable for children and most teens. Only mature adult viewers comfortable with graphic content should consider watching.

What age is Knock Knock suitable for?

Our verdict for Knock Knock is: Not recommended. See the age grid on this page for specific recommendations by age group.

Is Knock Knock safe for children? | ScreenWise Parent Guide

Content breakdown

🔫

Violence

Strong

🗣️

Language / Profanity

Strong

🔞

Sexual Content

Moderate

👻

Horror / Scary

Strong

About this movie

Type

Movie

Released

2015

Rating

Genre

Horror, Thriller

Synopsis

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.

Cast

Keanu Reeves

Evan Webber

Lorenza Izzo

Genesis

Ana de Armas

Bel

Aaron Burns

Louis

Full cast on IMDb ›

Age suitability

Under 6

Not yet

Ages 6–8

Not recommended

Ages 9–12

Not recommended

Ages 13+

Not recommended

Where to watch

🎬 Find on Amazon

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Parents also checked

Ratings based on MPAA/TV classification and TMDB metadata. Updated March 2026.
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