Uncle Claude, an eccentric millionaire, brings his flapper granddaughters, Ruth and Sally, to a fashionable beach hotel, where he is accosted by Letty Robbins, a beauty parlor solicitor. Infuriated by her tactics, he calls upon the "personality man," Harry Miller, a would-be singer who charms the girls; Claude rushes into the adjoining suite to find Clarence De Brie, a composer, who tries to induce him to produce his new opera; and back in his own suite, he encounters Joe Casey, who wants to give him swimming lessons; thus he resolves to escape to the beauty salon. Later, Letty and Tom decide to swap partners with their neighbors Harry and Grace; complications ensue when Claude, who is Harry's uncle, arrives with his granddaughters; and when they are all booked in a raid on their "wild party," the judge straightens out matters.