Corps variables (Feux croisés)

The story's blend of horror and philosophical questions is striking. I'm curious what inspired the author to explore these themes through such a surreal narrative.

There were some really intense moments, but I felt the middle dragged a bit. Was that an intentional choice to build atmosphere or just me?

The way characters question what makes them 'them' was fascinating. Do you think the story offers any answers or just raises more questions?