"Alfred Hitchcock Presents" The Big Switch (1956)

Chicago, 1920: Gangster Sam Dunleavy has just returned to town, and is visited by Al, a former childhood friend who is now a police officer. Al knows that Sam's girlfriend has just dropped him, and he warns Sam not to try anything violent. But Sam does plan to kill his ex-girlfriend, and he knows he needs an alibi. He sees his friend Barney, who promises to give him a perfect a...