The Shadow
The setting is late 20th Century Earth, and there is nothing all that special about it. At least nothing normal people do not know about.
However, beneath the surface, there is a secret world dominated by beings of ancient myths, monsters from horror stories, and these beings would rather go about their lives in secrecy. Except one specific group tends to ruin it for the others.
The vampires.
There is one group who stands up to the vampires, they are called the Clan of Azedadeth.