Topper by Thorne Smith

One of Thorne Smith’s most popular books and made into a film. Topper is about a respectable banker called Cosmo Topper, married to a depressingly staid wife Mary, and his misadventures with a couple of ghosts, Marion and George Kerby, who introduce him to other ghosts. He is romantically attracted to Marion, who at one point tries to kill him so that they can always be together. Unusually, Mary is treated sympathetically—she does not like what she has become and tries to change.