In 1968, an inconsequential government worker finds himself swept into the mechanism of state oppression when the Soviet Union invades Czechoslovakia. Put to work processing the warrants for anyone who opposes the new regime, he falls quickly into the moral no-man's-land of repressive bureaucracy. As his signatures send thousands to their fate, a series of encounters with a priest, a prostitute and the ghosts of the disappeared forces him to face the fundamental choice between action and safety.