"Director Eli Roth's "Knock Knock," a remake of the 1977 exploitation picture "Death Game," sometimes plays more like a comedy than like the grungy thriller that inspired it, but that's often all to the good."
Unlike most of his previous films, Eli Roth subtly goes for the jugular with Knock Knock, building to a finale brimming with surreal tension and a wickedly dark sense of humor that left me both cringing and laughing.
Intriguing spin on home-invasion thriller ... Slickly produced, energetically played, especially by Reeves as the good husband who, when home alone, falls prey to kinky temptations.
The movie sits atop three characters that neither Reeves, de Armas nor Lizzo can give enough personality or strength, making for laughable, cartoonish moments. [Full Review in Spanish]
Although Keanu Reeves has never been noted for his subtlety as a thespian, his performance as a captive husband in Knock Knock could easily be bettered by a stationary object like a chair.
Knock Knock, which is about two women wreaking havoc on a married man, aspires to be titillating. But more than anything, both persistently, persuasively angle to make you angry.