The first episode of this three-part thriller (fourth in the series) was definitely tip-top in my opinion. It offered all the gore and mystery that kept us glued to our seats during the first Messiah instalment (maybe the other two as well, but not all would agree).
However, the pace and development of the story seemed to be lacking once the Dante connection to the murders was found. While still thrilling and gruesome, the plot became a little complicated to decipher. Personally, I love murder mystery thrillers to be spell-ed out to me, so that I leave happy in the knowledge that I know everything, and I have no unanswered questions.
Still hoping that all would become clear, I watched the final episode intently. Again, it was definitely worth watching, but be warned - if you're lazy like me and want everything to be made very clear, or not clever enough to latch on to what's going on, you may be left a little unsatisfied.
If you're new to the Messiah series, I would definitely recommend the first one, at least as a starting point. This one is still worth a look, though.