Another dark shades of grey Brunetti where the intrigue is weaved into a larger story. Leon tackles intolerance, integration, immigration, guilt, the inegality of the law if you are a Rom child or a high society child.
There are some, very few, ray of light in this (Alvise being the head of a task force, I suspect this will come back in the next books) but it's mostly very dark grey, opening on a burial and ending on another.
Leon is very good at putting the reader inside the story and the emotional impact is very strong. Good but dark.