Georgia Garrett is sent by jealous wife Elvira Kent on an ocean cruise to masquerade as herself while she secretly stays home to catch her husband cheating. Meanwhile equally suspicious husband Michael Kent has sent a private eye on the same cruise to catch his wife cheating. Love and confusion ensues along with plenty of musical numbers.

The story sees brother and sister Tom and Ellen Bowen as stars of a show "Every Night at Seven", a Broadway success. They are persuaded to take the show to London, capitalizing on the imminent royal wedding of Princess Elizabeth and Philip Mountbatten.

Lucy enters a dog food jingle contest and wins the grand prize: a trip to London, England. She packs her ticket in her luggage and misses her plane and finds herself seated next to Mr. Mooney on the next flight.