This is a very old story. And it’s too long to tell in any single episode, so we’ll just start with the tail end, and we can catch up on the earlier history later, if we need to, or if we can figure it out at all . . . or if we’re still around to do it.
What we can figure out now is that for the last 400 years the world has been dominated by a single sinister group, a willingly antisocial collection of bloodsucking parasites that has wormed its way into the arteries of society and put a noose around the heart of humanity.
Source: How the angels fell to Earth