A lifetime of reading and watching dystopian and post-apocalyptic fiction prepared me for this.

But I see where you’re coming from. There’s a really interesting film called It Happened Here (interesting both in the subject matter and how it was filmed). It’s about an alternate history where Britain has been taken over by a puppet Nazi government. Everyone just kind of moves on with their life and accepts it like nothing has changed. I guess it’s kind of like that.