Where to Watch Knock Knock(2015)

Knock Knock (2015), directed by Eli Roth, is a horror film and is available to stream on 10 services in the US. With an IMDb score of 4.9/10 and 37% on Rotten Tomatoes from 3,462 ratings, it has divided audience opinion. Originally released in 2015, it's now a streaming staple.

The film stars Keanu Reeves, Lorenza Izzo, and Ana de Armas. At 99 minutes, it's easy to fit into a single evening. It fits comfortably into a single sitting without feeling rushed.

You can watch Knock Knock for free (with ads) on Kanopy, Hoopla, Plex Channel, and Fawesome — no subscription required, so it's the easiest option if you don't already pay for a streaming service. If you're picking what to watch next, it shares a vibe with A History of Violence and 28 Days Later, both of which are available to stream right now.