Pretty Little Liars: 6 Juicy Hints About the Finale, Straight From Huw Collins

"I think that, given their general plotting, which has quite some depth to it when you step back and consider the general manner by which they've manipulated their environment to further their own means, I think it would be dangerous to say that they are unaware of what's going on. Or that they don't know what's going on in ultimately what is, you know, a very small town."