When Sam Marlowe falls in love with his cousin's sparky ex-fiancee he finds himself up against stiff opposition from her millionaire father, her father's best friend and the best friend's son for whom she is destined, all of them travelling together aboard the RMS Atlantic. Nothing daunted, Sam perseveres in his suit: though he fails at sea he eventually triumphs on land. This Anglo-American musical comedy in prose begins in New York, crosses the Atlantic in leisurely fashion and ends in an English country house where all manner of things go bump in the night.