The book tells the story of impoverished, embarrassment-prone Drone Archibald "Archie" Moffam (pronounced "Moom"), and his difficult relationship with art-collecting, hotel-owning millionaire father-in-law Daniel Brewster, father of Archie's new bride Lucille. Archie's attempts to ingratiate himself with Brewster only get him further into trouble.

It wasn't Archie's fault, really. It's true he went to America and fell in love with Lucille, the daughter of a millionaire hotel proprietor . . . and if he did marry her -- well, what else was there to do? From his point of view, the whole thing was a thoroughly good egg; but Mr. Brewster, his father-in-law, thought differently, Archie had neither money nor occupation, which was distasteful in the eyes of the industrious Mr. Brewster; but the real bar was the fact that he had once adversely criticized one of his hotels. Archie did his best to heal the breach; but, being something of an ass, genus priceless, he found it almost beyond his powers to placate the "man-eating fish" whom Providence had given him as a father-in-law. . . .