A.K.A. Women in Prison, part 1 of 3
In 1997, the ground-breaking German television drama Hinter Gittern: der Frauenknast [Behind Bars: The Women's Prison] first aired, and I watched it with rapt attention with my grandmother as a teenager, an interesting experience to say the least, considering German prime time is like an only moderately tamed down version of Showtime. The show ran for ten years and, while I haven't seen it since the second or third season, from what I can remember it was pretty hard-hitting, impressively executed and downright fascinating.
Unfortunately, I'm not sure if it'll ever come out in America, but DVDs of the show in German are available. If you're a German speaker, it's well worth a watch.
(If that's not enough of a taste, here's another trailer.)