Don't Bother to Knock

Don't Bother to Knock
Theatrical release poster
Directed by	Roy Ward Baker
Screenplay by	Daniel Taradash
Based on	Mischief 1951 novel by Charlotte Armstrong
Produced by	Julian Blaustein
Starring	Richard Widmark Marilyn Monroe
Cinematography	Lucien Ballard
Edited by	George A. Gittens
Music by	Lionel Newman
Distributed by	20th Century Fox
Release date	July 18, 1952 (1952-07-18) (United States)
Running time	76 minutes
Country	United States
Language	English
Box office	$1.5 million (US rentals)[1]

Don't Bother to Knock is a 1952 American psychological thriller starring Richard Widmark and Marilyn Monroe and directed by Roy Ward Baker. The screenplay was written by Daniel Taradash, based on the 1951 novel Mischief by Charlotte Armstrong. Monroe is featured as a disturbed babysitter watching a child at the same New York hotel where a pilot, played by Widmark, is staying. He starts flirting with her, but over the evening her strange behavior makes him increasingly aware that she is unhinged. How he copes with the situation ends up profoundly impacting all three lives.