Lionsgate Home Entertainment also announced KNOCK, KNOCK, which stars Jarrett Del Bene, Nicole Abisinio, Chris Bashinelle and Kat Castaneda. Directed by Joseph Ariola, the film arrives on DVD April 29. The film is presented in anamorphic widescreen, along with an English Dolby Digital 5.1 Surround track. Extras features: Rico, Behind the Mask featurette, a Music & the Sounds featurette, a Beat Down featurette, a Special Make Up and Effects featurette and a trailer gallery. Read on for a synopsis and cover art.You never know what you will find on the other side of the door. A group of popular high school students learn this lesson when they stumble into the path of a vicious killer. The gruesome result leaves the town in horror, as two detectives work to crack the case. Suspicions mount as the school recluse is seen wandering around in the dead of night and the remaining survivors fear the worst: a knock that no lock can withstand.