Catiline, furious after losing the consulship to the outsider Cicero, begins to gather a group of disgraced senators and plebeians, all burdened by debt. Their plan involves assassination, arson, and a march on Rome to seize control, threatening the very fabric of the Republic. Cicero, renowned for his oratory prowess and as a novus homo, finds himself at the center of this dangerous conspiracy, as whispers of the plot reach him through a conspirator's mistress.