Example Of Classic Noir

.The first film version of Raymond Chandler's 1939 novel of the same name. It stars Humphrey Bogart as detective Philip Marlowe and Lauren Bacall as the female lead in a film about the process of a criminal investigation, not its results. William Faulkner, Leigh Brackett, and Jules Furthman co-wrote the screenplay.

Private detective Philip Marlowe (Humphrey Bogart) calls on new client General Sternwood (Charles Waldron) at his Los Angeles mansion. The wealthy general wants to resolve gambling debts his daughter, Carmen (Martha Vickers), owes to bookseller, Geiger. As Marlowe is leaving, General Sternwood's older daughter, Mrs. Vivian Rutledge (Lauren Bacall), stops him. She suspects her father's true motive for calling in a detective is to find his friend Sean Regan, who had mysteriously disappeared a month earlier.
Marlowe goes to Geiger's "rare book shop." Agnes Lowzier (Sonia Darrin), Geiger's assistant, minds the shop; the detritus of an illegal pornography operation. Marlowe follows Geiger to his house and hears a gunshot while a woman screams, and he breaks into the house. He finds Geiger's dead body and Carmen, as well as a hidden camera with an empty cartridge.
Vivian comes to Marlowe's office with scandalous pictures of Carmen she received with a blackmail demand for the negatives. Marlowe returns to Geiger's bookshop, and discovers that they are packing up the store. Marlowe follows a car leaving Geiger's store to the apartment of Joe Brody (Louis Jean Heydt), a gambler who previously blackmailed General Sternwood. Marlowe returns to Geiger's house where he finds Carmen. She initially claims ignorance about the murder of Geiger but then insists Brody killed Geiger. They are interrupted by the owner of the home, Eddie Mars.
Marlowe follows Vivian to Joe Brody's apartment, where they join Brody and Agnes, and later, Carmen, who wants her photos. Marlowe takes the photos and sends Vivian and Carmen home. After Brody admits he was blackmailing both General Sternwood and Vivian, he is suddenly shot and killed; the assailant flees. Marlowe follows and apprehends Carol Lundgren, Geiger's former driver, who has killed Brody in revenge for Geiger's death.
Marlowe next visits Mars' casino, where he asks about Regan, who is supposed to have run off with Mars' wife. Mars is evasive and tells Marlowe that Vivian is leaving bad IOUs in his casino. Marlowe unsuccessfully presses Vivian on her association with Mars, then returns home to find Carmen waiting for him. She admits she didn't like Regan and mentions that Mars calls Vivian frequently. In the morning, Marlowe learns that Regan has been found in Mexico.