From White Wolf:

Do you have what it takes to rule the secret and Machiavellian world of the undead?

Since time immemorial, the Kindred - vampires - have stalked unseen by the mortal masses upon whom they prey. Their world is a xenophobic, neo-feudal nightmare, and each city is ruled by a Prince, the most powerful and influential Kindred of them all. The Prince's word is inviolate and his actions are unquestionable. All Kindred turn to the Prince for protection, favor and for guidance in these modern nights.