On the exotic French Riviera, smooth-talking con man Lawrence Jameson makes his lavish living by charming rich, single ladies out of their money. Freddy Benson is a hustler with a much more basic approach, swindling gullible women with emotional lies about his ailing grandmother. When the two men meet, Freddy is greedy for Lawrence's spectacular lifestyle and they initially agree to work together. But their egos soon clash and only one con artist can prevail: the first to cheat naive heiress Christine Colgate out of $50,000 wins while the loser must leave town. The two men pull out all the stops to outdo each other in an increasingly hilarious battle, but who will win the fortune, and possibly the heart, of poor Christine?