Human Desire

Human Desire is a 1954 blackandwhite film noir directed by Fritz Lang, starring Glenn Ford. It is loosely based on the novel La Bte humaine, by mile Zola. The story had been filmed twice before La Bte humaine 1938 directed by Jean Renoir and Die Bestie im Menschen starring Ilka Grning 1920.

Carl Buckley Broderick Crawford is a gruff, harddrinking assistant yard supervisor married to the younger and more vibrant Vicki Gloria Grahame. When Carl is fired for talking back to his boss, he pleads with Vicki to go into the city to see the man she used to work for, John Owens Grandon Rhodes, a railroad executive who can get Carl his job back. Unbeknownst to Carl, Vicki did more than just work for Owens, and she allows Owens to bed her again in order to get Carl his job.Carl suspects Vicki and in a violent argument the truth slips out of her. Carl beats her and forces her to write a letter to Owens, setting up a meeting in a train car. On the trip Carl goes with Vicki, barges into the room when Owens opens the door, and kills Owens with a knife. ........

Source: Wikipedia