Mrs. Bentley, a Protestant minister's wife, writes journal (or diary) entries on a regular basis; the time span is just over a year (from 8 April 1939 to 12 May 1940, if the weekday noted with each entry is assumed to be correct). The couple has just moved to yet another small town, "Horizon". Mrs. Bentley, whose first name we never learn, despairs of Philip (her husband), who is becoming ever more remote. As she records her feelings, it is clear she, as she suspects of her husband, has nothing but contempt for her husband's flock. Mrs. Bentley sees herself and Philip as frustrated artists; she has a passion for music and, in her youth, entertained dreams of success as a pianist, and he spends much of his time sketching and painting.
Her journal tells mostly of her efforts to win her husband's affections, yet he appears to withstand her efforts, which are conflicted and subtly evasive. She strikes up a friendship with Paul, a local schoolteacher and philologist, while Philip engages the affections of Judith. They attempt to adopt a Catholic child, Steve, who seems to fulfil Philip's desire for a child that Mrs. Bentley cannot apparently deliver, but this arrangement falls apart. Eventually, putatively under pressure from an increasingly hostile congregation, they prepare to move to a city. However, it is plain that the congregation and town are nothing like as philistine as Mrs. Bentley insists—neighbourhood boys admiringly lurk outside the manse listening to her practise the piano and the audience for her recital in the church hall is vastly appreciative—but Mrs. Bentley is unmoved in her contempt for them and scornful of their applause for her bravura piano performance. Assuming that they are moving to a mid-sized prairie city in the middle of the Great Depression, Mrs. Bentley's dream of establishing a second-hand bookstore there as a means of escape from their unappealing life in a small town is patently absurd. Judith, who mysteriously has become pregnant, dies shortly after giving birth and the Bentleys adopt her child.
