Chicago is a 2002 American musical black comedy crime film based on the 1975 stage musical of the same name which in turn originated in the 1926 play of the same name. It explores the themes of celebrity, scandal, and corruption in Chicago during the Jazz Age. The film stars an ensemble cast led by Renée Zellweger, Catherine Zeta-Jones, and Richard Gere. Chicago centers on Roxie Hart (Zellweger) and Velma Kelly (Zeta-Jones), two murderers who find themselves in jail together awaiting trial in 1920s Chicago. Roxie, a housewife, and Velma, a vaudevillian, fight for the fame that will keep them from the gallows. The film marks the directorial debut of Rob Marshall, who also choreographed the film, and was adapted by screenwriter Bill Condon, with music by John Kander and lyrics by Fred Ebb.
In 1924, housewife Roxie Hart watches vaudeville star Velma Kelly perform ("Overture/All That Jazz") at The Onyx, a Chicago nightclub. Seeking stardom, Roxie begins an affair with furniture salesman Fred Casely, who claims to know the manager. After the show, Velma is arrested for killing her husband Charlie and sister Veronica, after catching them in bed together. A month later, Casely admits to Roxie that he lied about his connections in order to sleep with her. Enraged, she shoots him dead. She convinces her gullible husband, Amos, to take the blame, telling him she killed a burglar in self-defense. However, when evidence of Roxie's infidelity is uncovered, Amos recants and tells the police that Casely was dead when he arrived home ("Funny Honey"). Roxie is arrested, with District Attorney Martin Harrison declaring she faces execution by hanging.