When Tom Seymour, a child psychologist, plunges into a river to save a young man from drowning, he unwittingly reopens a chapter from his past he'd hoped to forget. For Tom already knows Danny Miller. When Danny was ten Tom helped imprison him for the killing of an old woman. Now out of prison with a new identity, Danny has some questions - questions he thinks only Tom can answer.

Reluctantly, Tom is drawn back into Danny's world - a place where the border between good and evil, innocence and guilt is blurred and confused. But when Danny's demands on Tom become extreme, Tom wonders whether he has crossed a line of his own - and in crossing it, can he ever go back?