The Arrangement tells the story of a seemingly-successful Los Angeles-area advertising executive of Greek-American extraction, Evangelos Arness who later takes on the name, "Eddie Anderson". Anderson, portrayed by Kirk Douglas is miserable at home with his marriage to his WASPy wife, Florence, played by Deborah Kerr, and with his career. He is engaged in a torrid affair with the Faye Dunaway character, co-worker, Gwen, and is forced to re-evaluate his life and its priorities after a failed suicide attempt.
According to the Internet Movie Database (IMDb), Kazan really wanted Eddie to be portrayed by Marlon Brando, whom Kazan felt could bring a greater depth to the role and bring it close to the character portrayed in the novel and who had experienced great success with Kazan previously in the film On the Waterfront. However, Brando refused to take the role, stating that he had no interest in making a film so soon after the assassination of Martin Luther King. Kazan felt this to be a dodge on Brando's part and wondered if the real reasons had more to do with Brando's increasing weight or receding hairline.