A phenomenal mystery novel. I always love the structure of chapters written in first person of the different characters throughout the book. The very gradual reveal of all the secrets of the building and how everything is connected had me absorbed the whole time. Every chapter revealed something about the plot or the characters, there's no filler in this book at all, I imagine the editor is very good as well as the author here. All the French cultural, geographical, and language was accurate as well so didn't get irritated as is sometimes the case when a book is set where one lives. Highly recommend, and I can see why it did so well in the storygraph awards last year.