Even though Jimmy Smith has become a millionaire, due to his Bible publishing business, his wife, Sue, remains frugal and has little desire for money. Her main concern is raising their adopted daughter, Nanette, into a respectable lady. Since he's filthy rich, however, as has nothing to do with his wealth, Jimmy bankrolls the lives of three beautiful women. Jimmy realizes how bad it could be if Sue found out and got the wrong idea about his relationship with these three women. He enlists the help of his lawyer friend, Billy, to help him get out of the pickle in exchange for a generous sum. They make plans to meet all three girls in Atlantic City to have a little fun -- and also break off all further contact. Meanwhile, young Nanette, who has an untapped wild side, sneaks off to Atlantic City to has some fun before she settles down with her beloved, Tom Trainor. When Nanette runs into Tom on her travels, she is shocked -- and he is even more upset. Meanwhile, Sue and Billy's wife, Lucille, have -- unbeknownst to their husbands -- planned a quiet weekend away, and run into their husbands, along with the three girls. Chaos breaks loose -- the threat of scandal looms large, threatening to end love affairs and even marriages -- but ultimately everything is cleared up, and all is well as the curtain falls. With a delightful score that includes the famous "Tea for Two" and "I Want to Be Happy," the lighthearted ' No, No, Nanette was once called "The Happiest Show In Town."