The boys Knock, Knock, Knock their way through the 2014 Australia supernatural horror film "The Babadook." Directed and written by Jennifer Kent, The Babadook follows a single mother and her child fall into a deep well of paranoia when an eerie children's book titled "Mister Babadook" manifests in their home.Not scared yet? You will be with a free month of Shudder streaming service, just use code "FINALBOYS" at check out to start your month of sleepless nights..............................