Can't say if the killing is any good but here are a few older tv show's with original plots.

Game of thrones (still new seasons)

Sifi Canceled

Firefly - If you like sifi type shows this is a must see along with the movie Serenity
Farscape - Might need to watch a few episodes to get into it but it is a vary good show.
Battle star gallatica - I didn't like it as much as Firefly or farscape still worth watching a few episodes to see if you can get into it.


Post apocalyptic -

Still Running

Revolution - Still making new episodes/seasons really great show imho

Canceled but still worth watching

Dark Angle - Really good never seen anything like it before
Jericho - Another good but canceled early post apocalyptic tv show

Survivors 2008 - Pretty cool
Survivors 1975 - Only really old show I'll add to this list since it was amazing and lasted for more seasons than any other show I've ever seen.

I have more to add to this list but this'll do for now. Mostly because my brain hurts from trying to remember lol.