After an unplanned night at a charity gala, the brilliant but down-on-his-luck financial engineer known as Sammy "Sam" Davis gets swept into a whirlwind romance with cold, calculating billionaire Gertrude Lawson. Sam attends the function to sell himself, but everything changes when a case of mistaken identity propels him into the life of Gertrude. With a need for a husband-or else her father will make her forfeit her CEO title-Gertrude sees an opportunity in Sam.