As the liner Ile de France docks in New York harbor, passengers notice with surprise the policemen gathered below and speculate as to which criminal among them will soon be apprehended. Here and there a single word floats above the general din: murder. Now and then a sage head tips knowingly in the direction of a flamboyant bootlegger: a crime of passion. But when the crowd begins to make its way down the gangplank, the notorious gangster slips...