"I very much need to be dead." These are the chilling words left behind by a man who had everything to live for -- but took his own life. In the aftermath, his widow, Jane Hawk, does what all her grief, fear, and fury demand: find the truth, no matter what. People of talent and accomplishment, people admired and happy and sound of mind, have been committing suicide in surprising numbers. When Jane seeks to learn why, she becomes the most-wanted fugitive...