An innocent man is days from execution. Only a guilty man can save him. Travis Boyette is a murderer. In 1998, in the small East Texas city of Sloan, he abducted, raped, and strangled a popular high-school cheerleader. He buried her body where it would never be found, then watched and waited as police and prosecutors arrested Donte Drumm, a black local football star with no connection to the crime. Tried, convicted and sentenced, Drumm was sent to death row. Nine years later, Donte Drumm is four days from execution. Over 400 miles away in Kansas, Travis also faecs death, suffering from an inoperable brain tumour. At long last, he decides to do what's right. After years of silence, he is ready to confess. But the law doesn't want to hear it. As far as they're concerned, they've got their man. So how can a guilty man convince lawyers, judges and politicians that the man they're about to execute is innocent?