Smart, capable, by-the-book, Sergeant Grace Narayan flying high in her inner-city police station – until her rigid principles cause her to be ostracised by every officer in her precinct. Grace has no choice but to take a punishment posting on the remote Welsh island of St Jory... a rural community with an eerie, hidden religion, known as the True Way.

Grace is determined to implement order on people who have long ‘policed themselves’ but the year-old cold case of a missing teenage boy, Cai, threatens to unearth the community’s well-buried secrets... Secrets that may be rooted in its unspoken traditions...