A coming of age story set in a remote mountain range in Germany; Steinhofel weaves the elegant tale of a seventeen-year-old boy named Phil. Although the novel does deal with Phil's sexuality, it primarily illustrates his tumultuous relationship with his unconventional mother, Glass, and reclusive twin sister, Dianne. From the birth of Phil and Dianne by their teenage mother in the prologue of the story, the family occupies a large estate, called Visible, on the outskirts of a socially repressive and ultra-conservative town.
As Plenty Porter enters her teenage years in Galesburg, Illinois, she realizes that her large family does not actually know one another. Being the youngest of eleven, no one expects much of her yet she is usually aware of everything that goes on around her. When she befriends the motherless Ed Prindergast, the young son of their wealthy neighbor, she does not realize that she needs his friendship as much as he needs hers. Although Plenty narrates, the story actually revolves around her older sister Marcie and her problems.