HBO's violent men-behind-bars drama is an addictive, testosterone-driven soap opera for guys. The eight episodes of the first season set the style for the show: a massive cast of a vivid characters on both sides of the bars, four or five stories unleashed at a breakneck pace and framed by angry, oddball introductions, and a soaring casualty rate. Created by Homicide producer Tom Fontana, this drama quickly earned its rightful reputation as the most brutal show on TV. It's simple chemistry: combine volatile ingredients in a confined space, shut tight, and shake.