Knock Knock - watch online: streaming, buy or rent
Currently you are able to watch "Knock Knock" streaming on Viaplay, Strim. It is also possible to buy "Knock Knock" on Apple TV Store, SF Anytime as download or rent it on Apple TV Store, SF Anytime online.
There aren't any free streaming options for Knock Knock right now. If you want know when it is streaming for free, click 'Free' in the filters above and hit the notification bell.
