In her mother's tradition, Ruth Livingston Hill holds hard to regeneration through God and the long list of incidents that will change those in darkness. For David Truscott, living with an embittered father and a crabbed aunt and her husband, does not know the Lord and it is through his witnessing an auto crash that he becomes fascinated with Daria Dartman whose helplessness finds him a ready champion. His call on her victim, Anne Wrenu, sends him to Anne's nine year old brother, also Davey, crippled by polio, and Davey, strong in faith, relies on Big Dave for help. An accident to his aunt, Anne and Davey's dependence and good Dr. Barnhart's hearty Christianity, open David's eyes to his own fallings and the ways of sin. When Darla turns out to be a Russian spy -- David is truly saved, so is happiness for his home and relatives -- and Anne and Davey. Explained very distinctly.