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Currently you are able to watch "Knock Knock" streaming on Amazon Prime Video or for free with ads on Freevee, Amazon Prime Video with Ads. It is also possible to rent "Knock Knock" on Apple TV, Amazon Video, Google Play Movies, YouTube, Vudu, Microsoft Store, Spectrum On Demand online and to download it on Apple TV, Amazon Video, Vudu, Microsoft Store, Google Play Movies, YouTube, AMC on Demand.
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.
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