The Big Combo is a 1955 American film noir crime film directed by Joseph H. Lewis, written by Philip Yordan and photographed by cinematographer John Alton, with music by David Raksin. The film stars Cornel Wilde, Richard Conte and Brian Donlevy, as well as Jean Wallace, who was Wilde's wife at the time. The supporting cast features Lee Van Cleef, Earl Holliman and the final screen appearance of actress Helen Walker. Plot Police Lt. Leonard Diamond is on a personal crusade to bring down the sadistic gangster Mr. Brown. He is also dangerously obsessed with Brown's girlfriend, the suicidal Susan Lowell. His main objective as a detective is to uncover what happened to a woman called "Alicia" from the crime boss's past. Mr. Brown, his second-in-command McClure, and thugs Fante and Mingo kidnap and torture the lieutenant, then pour a bottle of alcohol-based hair tonic down his throat before letting him go. Diamond eventually learns through one of Brown's past accomplices, Bettini, that Alicia was actually Brown's wife. Bettini suspects that Alicia was sent away to Sicily with former mob boss Grazzi, then murdered, tied to the boat's anchor, and permanently submerged. Diamond questions a Swede named Dreyer, who was the skipper of that boat but now operates an antiques store as a front, bankrolled by Brown. Dreyer denies involvement and does not want to disclose anything to Diamond, but is nonetheless murdered by McClure shortly after leaving his shop later that day. Diamond tries to persuade Susan to leave Brown and admits he might be in love with her. He shows her a photo of Brown, Alicia and Grazzi together on the boat. Susan finally confronts Brown about his wife and is told she is still alive in Sicily, living with Grazzi. Brown orders a hit on Diamond. However, when his gunmen Fante and Mingo go to Diamond's apartment, they mistakenly shoot and kill Diamond's burlesque dancer girlfriend Rita instead. Diamond sees an up-to-date photo of Alicia but realizes it wasn't taken in Sicily (since there's snow on the ground). This leads Diamond to suspect Brown did not kill Alicia but his boss Grazzi instead. Diamond is able to track Alicia to a sanitarium, where she is staying under another name. He asks for her help. Meanwhile, Brown's right-hand man, McClure, wants to take over. He plots with Fante and Mingo to ambush Mr. Brown, but they betray and