A game that before buying, I thought: What an interesting theme, should have a good narrative.
And it does have a good narrative, but it could be better explored, especially with the issue of rat-related disease rather than rats eating people.
My impression was that the game greatly improves its narrative from chapter 6 onwards, almost halfway through the game. In addition to that I also realized that the scenarios are better built and with more detailed graphics also from this part of the game forward.
Particularly I find the scenario better detailed than the characters (in gameplay, except in cg videos).
But considering who produced the game, I believe they did a job well done. Some very dark moments really is a game that needs to be played.