Looking to watch 'Knock Knock' on your TV, phone, or tablet? Finding a streaming service to buy, rent, download, or watch the Eli Roth-directed movie via subscription can be a huge pain, so we here at Moviefone want to take the pressure off. Read on for a listing of streaming and cable services - including rental, purchase, and subscription options - along with the availability of 'Knock Knock' on each platform when they are available. Now, before we get into all the details of how you can watch 'Knock Knock' right now, here are some details about the UFA, Dragonfly Entertainment, Black Bear Pictures, Sobras International Pictures, Elevated Films, Camp Grey, Lionsgate Premiere, Movie Trailer House, Rogovin Brothers horror flick. Released January 23rd, 2015, 'Knock Knock' stars Keanu Reeves, Lorenza Izzo, Ana de Armas, Aaron Burns The R movie has a runtime of about 1 hr 39 min, and received a user score of 53 out of 100 on TMDb, which compiled reviews from 2,698 well-known users. Curious to know what the movie's about? Here's the plot "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." 'Knock Knock' is currently available to rent, purchase, or stream via subscription on DIRECTV, Microsoft Store, Redbox, Google Play Movies, Amazon Video, AMC on Demand, Vudu, Spectrum On Demand, YouTube, The Roku Channel, and Apple iTunes .