Check out the official teaser trailer for Eli Roth's Knock Knock starring Keanu Reeves, Lorenza Izzo and Ana de Armas, right now on Fan Reviews! <br /> <br />Knock Knock Release Date: <br />October 28, 2015 <br /> <br />Knock, Knock is a 2015 American horror thriller film directed by Eli Roth, who also co-wrote the script with Guillermo Amoedo and Nicolás López. The film stars Keanu Reeves.
