The story really is ancilliary to the characters. The characters are the real reason to watch the show, not so much the arc.
As for answers... well, I've read a couple of interviews which say that they goofed a bit and should have answered a little more in the first season. They also said that's something they'd like to address in the second season a bit more. Obviously they can't give away all the secrets, otherwise there's no point to the show.
Hopefully, the first season was like the first act of a play - set up the scenario, the players, and such. Hopefully, the second season will add some twists and turns while addressing the questions from the first season. We'll see though.