Dan and Helen MacDonald made the life-altering decision to leave behind the bustling streets of London and start anew on the tranquil Norfolk coast. They hoped that the change of scenery would help mend the fractures in their marriage. Little did they know their plans would be complicated by the presence of their enigmatic new neighbour, Beth, whose influence would deeply affect their lives. As Helen navigates this unexpected dynamic, she finds herself confronted by a series of profound, dark, long-hidden secrets.