The concept is interesting and the mix between finding clues at the crime scenes on one side and the combination/connection of them on the other side is nice and wants to make one really think about the case. Unfortunately, the cases are fairly easy and also the overarching story is rather predictable. And therein lies the main problem of the game: Often you know the answer, but cannot choose it yet, because you haven't combined the correct two clues yet. This can turn into a very frustrating trial and error exercise, and even after you find the right combination it does not always feel satisfying and you end up asking yourself "why did these clues x and y give me the needed result, but the very similar clues x and z give nothing. So overall, an interesting game with highs and lows, that forces you to follow exactly the path the developers want you to.
I also think that this game is right between a 3 and a 4. For me, the atmosphere, story, and ease of solving the puzzles tip the scale towards a 4 instead of a 3. The mechanics of the game are introduced nicely and I never felt surprised by anything that I needed to do. A big positive aspect is that you do not get punished if you make a mistake; at least for me there was always a (sometimes a little time consuming) way to undo what I messed up and fix it. The puzzles are always logical and I found it straight forward to come up with the solution (even though at times was not that simple to execute it. That said, the puzzles get somewhat repetitive and much more linear towards the end. The last ~20-30 minutes feel like the designers also wanted to finish the story and didn't (want to) come up with new puzzles. Additionally, there are a few sequences where timing is important or fairly precise moving is required, which I find distract from the rest of the game. Another problem is the saving: as mentioned in other reviews, the game saves automatically at certain spots, but I never saw any message...but it still worked the couple times I needed to quit (I did it right after starting a new chapter). Overall, it is a solid, easy puzzle game without any bugs or game breaking problems for a few hours of entertainment. It took me about 7 hours to finish the game and I do not see any good reason to replay the game. To find missed secrets the individual chapters can be replayed individually, but except for completionists/achievement hunters .
