Dr. Joshua Crandall is in moral crisis. His wife Theo has been an invalid for years, the victim of kidney failure, and although he's resisting every step of the way out of respect for his religious beliefs, he's strangely attracted to a colleague, the mysterious Kristen. He is haunted by wanting to end Theo's suffering; it would be so easy for him, as a doctor, and after all, it is being done all the time in this morally confused world. But deep down he's troubled that he's deceiving himself into believing that his true motive could conceivably be characterized as altruism. Adding to his...