Lissa lover her job as a nurse, but recently she's been doing a better job of looking after other people than looking after herself. Overwhelmed after a traumatic incident at work, she agrees to swap lives with someone in a quiet village in Scotland.
Just out of the army, Cormac is desperately in need of distraction, and there's precious little of it in Kirrinfief, Maybe three months in London is just what he needs.
As Lissa and Cormac warm to their new lives, emailing back and forth about anything and everything, things finally seem to be falling into place. But each of them feel there's still a piece missing. What - or who - could it be?