In Renaissance Florence, Nico Argenti returns from the university with a law degree and eager to begin his career. Instead finds his city engulfed in turmoil with power hungry aristocrats using the death of Cosimo de Medici as the perfect opportunity to seize control of the Republic. The Florentine Chancellor recruits Nico to help defeat the conspiracy before it can destabilize the government. Nico learns that conspirators have hired an assassin to implement their plan. He must find a way to thwart the conspiracy before the assassin is turned against him.

To unravel the clues, Nico receives help from family and friends. His cousin Donato, who owns the finest restaurant in Florence, and his childhood friend artist Sandro Botticelli connect Nico to crucial sources of information.