Dream journal-feeling of something coming

Taking an early nap I had a strange dream, Here it is

 I was coming back from some where when I got out of my car. I could hear the sounds of what seemed like a helicopter but, when I looked up in the sky, it was not a helicopter at all. I can't be clear what exactly this thing was but it was huge and I could hear the frequency. They were talking about people and area's they were going to target and get rid of.
 I then went into my house and found a TRAP door to my attic. When I looked through the door, it was a window into someone else house, like they lived upstairs from me.

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Now in my dream I was in my own house, and my house is a one family, so it is impossible for anyone else to live upstairs from me because I live upstairs.
 Stranger things have happened
But I find that any time I dream of my own house, it is not quit the same as it is in reality. There is always someone living upstairs, or a room is different. 

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