The mise-en-scene includes buses, taxis, and buildings in dark colors with plain costumes to lack color. The lighting uses a green background and bright views of busy American streets with yellow taxis to set the scene and tone for a thriller. The opening music is choppy, exciting, and tense to build atmosphere and set the tone. Credits scroll individually on screen before the title appears and fades, removing the green background. The atmosphere creates enigma as the audience does not know the main character but can assume he is a wealthy businessman with a secretary based on the setting.