This was my dream last night, I've had it once before a couple months ago.
I'm looking out my front door and I see a blue car pull up. I see myself get out, holding an axe. The face is blurry, but I can tell it's me. I think it's (I'm) smiling, but I can't be sure. It starts walking slowly towards the door. I feel this horrible fear take hold of me, I've never felt so afraid. I try to turn and run for the back door but I can barely move; I feel like I weigh a ton. I get to the hall and look back (slowly) and I can see that I'm cutting down the door. After that it gets hazy, but I remember getting hit in the gut with the axe in the hall. I also see the face clearly later in the dream, and that is the most terrifying part of the whole thing. I can't remember what the face looks like though.
While many of my dreams would seem much more disturbing, this one bothers me the most.