"Lissa, is a nurse in a gritty, hectic London neighborhood. Always terribly competent and good at keeping it all together, she's been suffering quietly with PTSD after helping to save the victim of a shocking crime. Her supervisor quietly arranges for Lissa to spend a few months doing a much less demanding job in the little town of Kirrinfeif in the Scottish Highlands, hoping that the change of scenery will help her heal. Lissa will be swapping places...