With his hand trapped in the door of a speeding car, a man struggles to remain upright as he's dragged along a deserted stretch of San Juan Road in Phoenix's South Mountain Preserve. It's the perfect place to drive a man to his grave -- literally. Starting with a crime so gruesome even prowling coyotes keep their distance from the remains, a killer begins crisscrossing the Southwest on a spree of grisly murders.A hundred miles away, Ali Reynolds is grieving. The newscasting job she once delighted in is gone and so is the philandering husband she loved and thought she knew. When a member of the family who gave Ali a generous scholarship for her education decades earlier suddenly asks her for a meeting, Ali wonders what it can mean. Before she can satisfy her curiosity, though, Ali receives another startling call: a friend's teenage daughter has disappeared. Ali offers to help, but in doing so, she unknowingly begins a quest that will reveal a deadly ring of secrets, at the center of which stand two undiscriminating killers....