In one of the poorest parts of rural New Hampshire, teenage girls have been disappearing, snatched from back country roads, never to be seen alive again. For 17-year-old Marjorie Richards, the fear raised by these abductions is the backdrop to what she lives with in her own home, every day.

Marjorie has been raised by parents so intentionally isolated from normal society that they have developed their own dialect, a kind of mountain hybrid of English that displays both their ignorance of and disdain for the wider world. Marjorie is tormented by her classmates, who call her "The Talk-Funny Girl," but as the nearby factory town sinks deeper into economic ruin and as her parents fall more completely under the influence of a sadistic cult leader, her options for escape dwindle. But then, thanks to a loving aunt, Marjorie is hired by a man, himself a victim of abuse, who is building what he calls "a cathedral", right in the center of town.

Day by day, Marjorie's skills as a stoneworker increase, and so too does her intolerance for the bitter rules of her family life. Gradually, through exposure to the world beyond her parents' wood cabin thanks to the kindness of her aunt and her boss, and an almost superhuman determination, she discovers what is loveable within herself.