Each episode, Emily circles her next victim--an act that can seen in two ways: either the writers are being way too obvious when it clear who the next target already, or Emily is mentally disturbed in some way. With the emergence of Emily's therapist and flashbacks to her childhood in which she was institutionalized, I'm more inclined to believe the later. Emily is completely stonefaced when she pulls her gotchas, and then perfectly normal in public. Then, she's scheming in her home and we see how little she cares about people.
The revenging this week took more victims this week than usual, as Emily manages to nab the doctor, force Victoria and Charlotte apart, and embarrass various other Hamptonites. On top of that, the mystery of the email from last week still remains and Tyler is trying to keep Emily and Daniel apart for whatever reason. Again, there's a flashback of Victoria and David seemingly in love--predicated on the fact that Victoria just handed her security David's laptop.
Four episodes into the show and I still don't get why Jack, Declan, and even Nolan are around. I get that Jack and Declan represent the normal people and Nolan is the only other person who knows what Emily is up to, but they're always on the outskirts of the actions, never involved in the plots in a substantial way. They're isolated in their own world which, frankly, isn't that interesting.