- Directors: John Huston
- Producers: Jerry Wald
- Writers: Maxwell Anderson, Richard Brooks, John Huston
- Genres: Crime, Drama, Film-Noir, Thriller
- Actors: Humphrey Bogart, Edward G Robinson, Lauren Bacall, Lionel Barrymore, Claire Trevor, Marc Lawrence
Frank McCloud (Bogart) visits a small backwater Key Largo hotel run by wheelchair-bound James Temple (Barrymore) and his daughter-in-law Nora (Bacall), the widow of Frank’s World War II friend. The hotel has been temporarily taken over by notorious fugitive gangster Johnny Rocco (Robinson) and his gang.
Frank at first appears indifferent to the situation, but Rocco’s treatment of his alcoholic mistress Gaye (Trevor) and his hand in the murder of two local Indians and a police officer convinces Frank that Rocco must be stopped. His chance comes when Rocco forces Frank to pilot the boat by which the gang intends to escape to Cuba. Once at sea, with no hostages to worry about, Frank is able to kill every member of the gang, one by one, Rocco last of all. Frank then returns to Nora.
The subplot turns on Temple’s grief over his dead son; he is under the impression that his son died a hero in Italy. McCloud resists relating any tales about the Temple boy, despite Mr. Temple’s urging. When McCloud relents, he tells exactly the story Mr. Temple and the widow want to hear, although it is apparent that McCloud was the hero that he’s allowing the Temple boy to be.