Funology Knock Knock Jokes: We have tons of knock knock jokes that are sure to tickle the tummies of your little pranksters! Knock, knock. Who's there? Great jokes for your kids.. Knock Knock—independent makers of clever gifts, books, stationery, desk amp office stuff. Knock Knock stuff brings humor, creativity, smarts to everyday life.. Directed by Eli Roth. With Keanu Reeves, Lorenza Izzo, Ana de Armas, Aaron Burns. A devoted father helps two stranded young women who knock on his door, but his kind gesture turns into a dangerous seduction and a deadly game of cat and mouse..