Alright I know this is going to be a fairly hollow review because it is based on one episode. But the first episode has set a strong tone of mystery and drama similar to oh, I don't know... LOST? The complete and total combination of mystery and randomness is a great way to get the audience interested, but is hard to build on. It puts the audience in the detectives position; trying to figure out who the inside man is and how all these people are connected.
The first episode showed brief glimpses of the outside world as it followed a reporter as he pursued the case of one of the abducted people. This is a smart move by the writers, giving the audience some background without resorting desperately to flashbacks.
The reason this show could be terrible is because it can lose its mysterious aspects too quickly or too slowly. If it is lost too slowly and the characters make little progress in escaping, the show grows boring. If they escape to quickly, well, the show is near impossible to continue.
Yes this review is very premature, but at this stage I recommend that you tune into this show live so that the mysterious aspects can be sustained for weeks.
8/10 (for now)