The Big Heat is a 1953 film noir directed by Fritz Lang, starring Glenn Ford, Gloria Grahame, and Lee Marvin. It is about a cop who takes on the crime syndicate that controls his city after the brutal murder of his beloved wife. The film was written by former crime reporter Sydney Boehm based on a serial by William P. McGivern which appeared in the Saturday Evening Post, and was published as a novel in 1952.