Double Indemnity is a 1944 American psychological thriller film noir directed by Billy Wilder, co-written by Wilder and Raymond Chandler, and produced by Buddy DeSylva and Joseph Sistrom. The screenplay was based on James M. Cain's 1943 novella of the same name, which originally appeared as an eight-part serial in Liberty magazine, beginning in February 1936.
In 1938, Walter Neff, an insurance salesman, returns to his office in downtown Los Angeles late one night. In pain from a gunshot wound to his shoulder, Neff begins dictating a confession into a dictaphone for his friend and colleague, Barton Keyes, a claims adjuster. The story, told primarily in flashback, ensues.