The Custom of the Country tells the story of Undine Spragg, a Midwestern girl who attempts to ascend in New York City society. The Spraggs, a family of midwesterners from the city of Apex who have made money through somewhat shady financial dealings, arrive in New York City at the prompting of their beautiful, ambitious, but socially-naive daughter, Undine. She marries Ralph Marvell, a would-be po...