Well written, brilliant acting, steady pacing. I don't usually watch prison themed shows. I took a chance on this as it stared Sean Bean. His performance as a mild-mannered school teacher, who is incarcerated for vehicular manslaughter (driving drunk), is phenomenal. While only 3 episodes, this limited series spans years in the life of a man seeking some form of redemption, while surrounded by hardened criminals, and trying to maintain his own humanity. The second main plot line, also brilliantly acted, is that of a senior prison guard, who is also tested in ways that I won't reveal here. Both stories are heart wrenching in their own way. Mortality plays that point the finger at us, the viewers, and asks "what would you do in this situation?" There is some disturbing violence - not a lot, not gratuitous - but necessary to understand what life is like for both the incarcerated as well as the guards.