"It is an undeniable and, may I say, fundamental quality of man, that when faced with extinction, every alternative is preferable."
~ Dr. Leonard Church
Would I call it horror, as everyone else is? Not hardly. It is, however, thrilling, offers an excellent premise and a satisfying mystery, and showcases several good characters that act realistically in their current situations; the world would be a better place if more people were like Emma. Some notable plotholes and "why don't they just do this thing to get out of this situation" moments cause the story to falter in the places where it doesn't lag, and neither the art nor sound design is anything worth noting, at least to me.
I would, however, like to note that the actor for Norman is the same as the one for Hamefura's Catarina Claes - in both Japanese and English Dubs. That's fun.