We find with great pleasure the strip steaseuse, American masseuse Ingrid Diesel, who skillfully killing our good French and Lola Jost old commissioner retired and grumpy happy poopers in a very murky investigation that ultimately involves the Both personally. Not much more to say, writing is perfect and intrigue conducted masterfully. For me, Fred Vargas - Dominique Sylvain, same fight which they come out winning in the ring of the French thriller!