Amid mass protests and university blockades, Serbian students built something rare: a functioning system of direct democracy under real political pressure. "Anatomy of the Plenum" goes inside this experiment, examining how open assemblies-plenums-became spaces of decision-making, conflict, learning, and collective responsibility. Drawing on in-depth interviews with participants across multiple universities, the report reconstructs how decisions were made, how power circulated without formal leaders, and how ideals of participation collided with the realities of exhaustion, disagreement, and repression. It is an essential contribution to scholarship on collective action, democratic theory, and movement organization.