An ordinary boy with an ordinary life stands accused of killing the next president of the United States. What happened? Dr Paul Allen is a well-respected man. He lives a happy, comfortable life with his second wife and their family.Until the night when a knock at the door blows his world apart: a hugely popular presidential candidate has been shot, and they say the young man who pulled the trigger is Paul's son.Daniel, the only child from his first, failed marriage, was always a good kid and Paul is convinced his quiet boy is not capable of murder.Overwhelmed by a vortex of feelings, Paul embarks on a mission to understand what happened and why. Following the trail of his son's journey across America, he is forced to re-examine his life as a husband and a parent, and every decision he ever made.What follows is a powerfully emotional and suspense-filled quest that keeps you guessing to the very end.'Monsters don't just become monsters, after all.'