Spring of 1468. Young Lorenzo, a representative of the noble Medici family ruling in Florence, has no say over his own destiny. Lorenzo is in love with the beautiful Lucrezia Donati, but by his father's order, he marries Clarissa Orsini to further solidify the power of the Medici clan.
The arranged marriage immediately shatters dreams of happiness, so Lorenzo is set against Clarissa and can respond to her love only with cold politeness. Only when accidentally quarreling with his wife does Lorenzo realize that he does value his relationship with her, but offended pride hinders reconciliation.
Meanwhile, at the Medici court, another couple suffers because they cannot marry. Lorenzo, having inherited his father's power in Florence, decides to help the lovers. Since he is unable to fix anything in his own life, at least let these two be happy! However, Lorenzo's actions trigger a series of tragic coincidences, resulting in a conspiracy forming against the Medici, threatening not only Lorenzo himself as the head of the family but also Clarissa…