This book was written before the highly successful "His Bloody Project "(shortlisted for the 2016 Booker Prize )and it has some of the same characteristics. The atmosphere and setting (in this case a small Alsatian town) have a surreal touch. It feels as if the whole town is caught in a dark time stop (although Mulhouse and Strasbourg,both very much alive, are in the vicinity). Furthermore, the whole town seems to be inhabited by thoroughly unpleasant and yes, slightly weird people(a bartender who hardly says a word, a desk sergeant who's not inclined to do any work, people in bars just staring at nothing (or their glass)).
This book is,although very well written, difficult to classify. The best description (that I can give)is a written film noir with undertones of Patrick Süskind and Simenon.