Premix: as a non-italian, I would have probably given a lower rating. However, everyone living in Italy knows the importance of this story in the Italian "pop" culture, and how important it is to keep talking about it.
The story narrated is incredibly interesting, and the docu-series helps re-ordering the puzzle which has been unfolded in the last 35 years. A puzzle with various and different pieces: a story of a missing girl, a story with intertwined religious and political powers, a story of corruption, a story of a family which never loses faith.
However, although the docu-series lucidly describes all the different theories behind this case, it does not really add anything new to what is already known, a part from the very last new witness in the last episode, giving a sense of "I whish but I couldn't" as soon as the last episode ends.
On the production side, the docu-series is well done, though it was probably way over-streched: some specific episodes received way too much importance, and the cut-scenes were all over the places and way over used throughout all the episodes, ending up boring the viewer.
Nevertheless, if someone is able to overcome these issue, and to focus on the main point of the story, she will be able to better understand what is behind one of the biggest scandal in Vatican's history, and to witness the tragic story of Emanuela Orlandi.
Let's hope the truth will come out sooner or later.
