A rich banker is actually a crook. His mistress, an alien, wants to become French and the only way is to marry a Frenchman.

This murder mystery is set in a Parisian cafe and examines the mysterious murder of a famed journalist and extortionist who is killed at his table in the cafe. Though the prime suspects are gathered together( including his wife and her lover, the gun-runner, the creditor, and a playboy) and all of them have motives, none of them did it...

The forbidden romance between wealthy Giselle Preville and impoverished journalist Claude Dauphin. When Preville disappears, Dauphin is accused of kidnapping by the girl's snobbish father Rene Alexander. By the time the Normandie reaches New York, however, the "mystery" is solved and all misunderstandings blithely swept away.