I had a dream that there was a knock on the door so I went to go see who it was, and it was my sister, but she was in the house sitting next to me! And when I wouldnt let them in I couldn't talk as I was trying to tell the people in the house with me what was going on! And the lookalike at the door gave me a mischievous grin and then ran away and then I woke up! Has anyone had a dream like that before? It creeped me out!