Good start to the series, although I think it's odd that Mac was so laid back and not that ambitious in life, was suddenly so gung-ho to find out what really happened to her sister, it was such an abrupt shift in character. 
 Mac is an interesting character. She seemed really caught up in her appearance and that she took offense if someone thought she was like a Barbie, yet constantly described her manis/pedis and whether or not her outfits would clash with her hair color. 
 Barrons on the other hand is the perfect opposite of Mac; cool, calm, cunning and methodical under pressure. I can't wait to find out exactly what he is (besides a supersexy badass). 
 V'Lane......not sure about him yet. I do find it extremely creepy that he can manipulate one into sex without that person realizing what is going on. He's like Roofies, but you're not actually ingesting anything that will show up in a tox screen at some point down the road.