Knock Knock is a 2015 English-language Drama Thriller film directed by Eli Roth and produced by Eli Roth, Muguel Asensio, Colleen Camp, John T. Degraye, Cassian Elwes and Nicol S L Pez. When a devoted husband and father is left home alone for the weekend, two stranded young women unexpectedly knock on his door for help. What starts out as a kind gesture results in a dangerous seduction and a deadly game of cat and mouse. A sexy new thriller from director Eli Roth and written for the screen by Eli Roth & Nicolás López & Guillermo Amoedo and story by Anthony Overman and Michael Ronald, KNOCK KNOCK stars Keanu Reeves as the family man who falls into temptation and Lorenza Izzo and Ana de Armas as the seductresses who wreak havoc upon his life, turning a married man's dark fantasy into his worst nightmare. Written by Lionsgate. Knock knock features Keanu Reeves in the lead role along with an ensemble cast including Ana De Armas, Lorenza Izzo, Aaron Burns, Ignacia Allamand, Colleen Camp and Dan Baily. The screenplay is written by Eli Roth, Guillermo Amoedo and Nicol s L pez. The music was composed by Manuel Riveiro. Cinematography was done by Antonio Quercia and editing by Diego Macho. The film has a running time of 99 minutes. It was released on 15th October 2015. The Film was successful at box office. Knock Knock was made on a budget of $2 million and it was a super hit at box office gross of $5 million. Distribution rights for the movie were acquired by Lionsgate Premiere.