Lissa, is a nurse in a gritty, hectic London neighborhood. Usually terribly good at keeping it all together, she's recently been suffering quietly with PTSD after witnessing a violent crime. Her supervisor arranges for Lissa to spend a few months doing a much less demanding job in the little town of Kirrinfief in the Scottish Highlands, hoping that the change of scenery will help her heal. Lissa will be switching places with Cormac, an Army veteran who's Kirrinfief's easygoing nurse, paramedic, and all-purpose medical man. Lissa's never experienced small-town life, and Cormack's never spent more than a day in a big city, but it seems like a swap that would do them both some good. In London, the gentle Cormac is a fish out of the water; in Kirrinfief, the dynamic Lissa finds it hard to adjust to the quiet. But these two strangers are now in constant contact, taking over each other's patients, endlessly emailing about anything and everything. Lissa and Cormac discover a new depth of feeling ... for their profession and for each other. But what will happen when Lissa and Cormack finally meet?́