A family man's kind gesture turns into a dangerous seduction and a deadly game of cat and mouse when he opens the door to two stranded young women.
Rating: R; for disturbing violent behavior, strong sexual content, nudity and language.|||adult
Camp Greg Productions LLC ; director, Eli Roth ; writers, Eli Roth, Guillermo Amoedo, Nicholas Lopez.
Title from web page.
Special features: Audio commentary by Eli Roth, Lorenza Izzo, Nicolas Lopez and Colleen Camp; Deleted scenes with optional commentary Eli Roth; "The art of destruction: the making of Knock knock" featurette; Stills gallery.
Keanu Reeves, Lorenza Izzo, Ana de Armas.
DVD; 5.1 Dolby Digital.
English dialogue; English or Spanish subtitles; closed-captioned.