Dream About Vet Visit And Strange Events

This dream was about

I was in a vet and there was this doctor and she was like hey how why are you here what are you here for and I said I was here about five years ago for my dog and I'm here again I don't have anyone else with me but and then the dream transported to a different area I was on the phone with her and we were just talking we were both in our apartments they were the exact same apartments I was against the front door I was sitting down on the phone and all of a sudden our lights go out and she was like did you see that my lights just went out I said mine too there was banging on both of our doors and then the door slowly opened and I looked up and there was white foam from the door and then the door opened and I saw this tall black thing it was like around 10 feet tall and then my dream ended