Download Knock Knock Malay subtitle. Here you will get the Malay subtitle of Knock Knock or Parents movie. The story of this movie was written by Eli Roth And Eli Roth has directed this movie. Keanu , Lorenza Izzo, Ana de Armas are the leading character of this movie. Knock Knock is a Drama, Thriller movie. Knock Knock movie got an average of 4.8 out of 10 in IMDB from a total of 92k votes. This movie was released on 2015.