I try to push a single idea to its absolute limit. So for all of those ideas that existed in the story, you attempt to find a physical realisation in the space.
Horror is the future. And you cannot be afraid. You must push everything to the absolute limit, or else life will be boring. People will be boring. Horror is like a serpent: always shedding its skin, always changing. And it will always come back. It can't be hidden away like the guilty secrets we try to keep in our subconscious. Dario Argento