Niall Grenham, a 'failed priest', emigrated to the US. He married Rona and they had a daughter, Ros, who is the light of their lives. Ros grows up to be an accomplished and well-meaning young woman. Niall cannot credit his good fortune.After a late-night graduation party, Ros tries to help her childhood friend, Mark, who has gone off the rails and is addicted to drugs. Motivated by jealousy, he engineers a car accident in which Ros is brutally...