Simply put, this is a fantastic read. The place is contemporary Halifax with three main characters: an ER nurse, a policeman, and a 911 dispatcher. Their lives intersect but obliquely, in a fashion that is never contrived. The backstory lives are complicated, of course, but realistically so. The best part of the book is the feeling of the stories – stress exacerbated by heat and overwork. By the way, the title refers to the overnight hours of 3-6am when emergency activities are temporarily quiet. Just excellent story-telling.