The textbook definition of a good citizen is a person who works hard, helps others and respects the law. A night minivan driver witnesses a crime and chases the robber down an alley and confronts him. A bloody fistfight ensues. But when the shot cuts to his close-up in the confined space of the interrogation room, we find him looking ragged and unkempt, trying hard to give a coherent account of what had happened to a hostile plain clothes cop, wondering if it pays to be a good citizen when one becomes punished for one’s own good intentions.