Nefarious is a rollercoaster. Not because it takes you somewhere. Because you get on thinking you know what ride this is, and then the floor disappears.
Two people talking in a room. That's it. The darkness here isn't aesthetic. It's structural. You're not watching evil. You're watching evil make sense. That's worse.
I give it 100 evil smiles out of 10. Which isn't a rating. It's a warning label.