Essentially we play in a new version of World of Darkness, a world best described as being a corrupt, supernatural and horrifying version of our reality.
The humans live a life not unlike our own, unaware of the true existence of the supernatural. This massive secret is called the Masquerade, and it serves everyone’s survival.
You play a Vampire or Ghoul, once a human, you now live a prolonged life by feeding on mortals. In this life you are also part of a Clan of other Vampires, serving the Clan with your loyalty.
Vampires are problematic creatures, not only do they need blood to survive, but the sun burns them alive forcing them to exist only at night.
Worse still is the curse that Vampires are afflicted by, for all Vampires have desires and wants, collectively known as Ambition.
But there are other Clans than your own, you all come together in the Undying Society, a system of rules and diplomacy between the Clans, to invite politics and avoid bloodshed. All this creates a life where Vampires are bound by loyalty but pushed by their ambition.
Doing the bidding of your Clan in a scheme against the other Clans, while trying to attain your own personal goals.
Vampire: The Ambitious 