This one started as a completely different dream.  I was in a restaurant with my sister, or someone.  I don't recall exactly who it was.  The restaurant had a waiting area with booths where you could sit at a table, but not be served their.

  There were about 6 other various people waiting.  I don't recall exactly what took place, but someone got angry, so I left in the company of this man and his party.  We went to my house, but when we got to the front door, things started getting suspicious.

  Apparently, I thought he was trying to kill me, and he thought I was planning to do the same to him.  I don't recall ever having a gun in my hand, but he did, and it was as if we were pointing guns at each other.

  I remember thinking to myself, he had his gun on me first, and didn't shoot, so he must not be intending to kill me unless I actually try to kill him, which I won't.

  I don't recall all the details, but after a few minutes, I was halfway down the sidewalk, and one of the members of his party was trying to attack me.

  It was not an angry attack, or even a conscious attack, probably.  It was a blank-stare attack.

  There was another brief series of events of which I don't recall the details, but here's some information to get you up to speed.

  You know those big centipedes?  Not the long, red-brown millipedes with the tiny legs, but the shorter, more yellow-brown centipedes with the longer legs and the spiky, antennae-looking things.  The ones that look like they can fight back.

  Well, there were some creatures that looked like those, except they appeared to be drawn in blue line that glowed slightly.  They were able to "crawl" through the air, and they could pass through solid matter.  My best guess is that they were from a different dimension and somehow found their way into this one.

  They are attracted to the electrical activity in human brains, so they would try to get into a human brain and sort of feed on it, or something.

  One thing to know is that you can't see them unless you actually have one in your own head, but generally, when they do enter a brain, they seize control over the person, so you're essentially possessed and can't "see" anything anyway.

  Another thing to know is that when one does take over a person for a while, the creature creates a certain amount of copies of itself, and then they leave the brain in search of one of their own.

  The creatures can communicate with each other remotely, somehow, and I'm not sure why, but a possessed person becomes mildly violent towards unpossessed people.  I suppose it could be that they want to capture them.

  Anyway, one of them entered my brain, but I was able to "defeat" it so that it remained there, but I had control over it.  I kept it from reproducing, and used it to make the other creatures in the vicinity to stop and leave their hosts.

  I don't really remember any details beyond that.