The Story - Short Version:
Okay, the basic premise is this, Angel/Angelus, Spike and Dru are the hero's of the piece. They are still vampires but demons aren't the baddies in this Hellmouth, humans are. And there isn't a more merciless and murderous group of humans than Buffy, Giles, Xander, Willow and their small band of brutal buddies.
The Story - Long Version:
It's been 7 years since the opening of the Hellmouth. What was once a quaint and welcoming township has become an infectious metropolis, polluted, dank and lost. Vampires, demons and other beasts seek out a pitiful existence in the shadowed alleyways and sewers, avoiding the light of day for fear of those who've claimed it only for themselves. Purists, the humans, rule the city with an iron fist short on mercy. Most live in ignorance of those who dwell beneath them thanks to the elite few with the strength, skill and blessings of the influential to keep the status quo.
It's been 7 years since the fall of the one they called Master. He was to be their liberator, to free the demons from the tyranny of the humans once and for all. But all was lost when the human's champion, the Slayer, came to challenge him. She was thought to be a Slayer like any other. They were grossly mistaken. She was cunning, deadly and determined. Most of all, she had the indispensable help of a network of friends and family. The battle was legendary but in the end, she, along with her diabolical Watcher and loyal crew, murdered the Master and his followers. The brutal vigilantes adopted the deceptively comical title 'The Scoobies' and made quick work of 'cleaning' the town of what they deemed scum. They declared war on the inhuman inhabitants of Sunnydale and for a time, things looked bleak.
Then he came, Angelus and his unlikely family, Spike and Drusilla. And with them came hope. They took a stand for those who couldn't. Things began to change for the better.
The Purists countered with money and a lot of it. The Sunnydale branch office of Wolfram and Hart began funding special ops to eradicate the resistance. They pooled international and local support, cooperating with the Council of Watchers and the paramilitary group the Initiative. But the vampires still fight the good fight so that someday inhumankind can finally live in the peace and harmony it so richly deserves.
Basically, it's an LJ RPG (role-playing game). The rules and contact info can be found on the info page for wickedverse, but while some of the roles have been filled, they're looking specifically for people to write the following main characters:
A large number of the wildcard slots are still available as well. If you think you might be interested, head on over and check it out. It should be a lot of fun. :)