Knock Knock
- Release Date: October 9, 2015 (limited)
- Genre: Horror, Thriller
- Director: Eli Roth
- Producer(s): Eli Roth, Cassian Elwes, Miguel Asensio, Colleen Camp, John T. Degraye, Nicolás López
- Writer(s): Guillermo Amoedo, Nicolás López, Eli Roth
- Studio: Entertainment One
- Length: 1h 36m
Synopsis
A happily married man (Keanu Reeves) is randomly thrust into an uncomfortable situation when two young girls come knocking on his door.