After graduating from a fashionable finishing school and touring Europe with her father, Selina Peake returns to the United States, where her father is accidentally killed after losing his fortune in a gambling den. Selina is reduced to teaching in a high school in the Dutch community at High Prarie near Chicago. She boards in the farmhouse of Klass Poole, a dull-witted market gardener, and finally marries Pervus DeJong, a poor and backward farmer. She shares the drudgery of her husband's futile life and finds happiness only in their small son, Dirk, whom she calls "So-Big."

Police Chief Jim Fitzpatrick is after gangster Sam Belmonte. He uses his police detective brother Ed to watch over Daisy who is associated with Belmonte but things don't go as planned.