When Kit Doyle's near-perfect mother tells her about the letter she's written and locked away - a letter to be read only 'if anything should happen' to her - Kit thinks she's being melodramatic. But the next day Kit's mother is dead - and what she reads in that letter will change Kit's life forever.

Armed with nothing but the secret letter, a tight-lipped father, and some good friends at the radio station where she works, Kit sets out to learn the truth about the shady past her mother has kept hidden for so many years.

But when a dead body turns up, Kit realizes that at least one person is determined to stop her finding out the truth - whatever it takes.