YESASIA: Knock Knock! Who's There? (2015) (DVD) (Taiwan Version) DVD - Annie Liu, Kate Tsui, HOVE - Hong Kong Movies & Videos - Free Shipping
Amazon.com: Knock, Knock (Unrated Director's Cut) : Nicole Abisinio, Joli Julianna, Matt Fraley, Jim Ford, Misty Dawn Meeler, Matt Lish, Chris Bashinelli, Kat Castaneda, Sal Sirchia, Antonio Mastrantonio, John Cipriano Jr., Damion
Blu-Ray Review] 'Knock Knock' Is Intense & Disturbing; Roth & Reeves Are In Top Form: Arrives On Blu-ray & DVD December 8, 2015 From Lionsgate | Screen-Connections