A similar thing happened to me.
When I was little I walked into a friends house and I heard a voice coming from the room but there was no one in the room. It was empty. I looked around and tried to find it, but there was noone there that I could see. It talked to me and of course scared the hell outta me. This movie gave me a new idea as to what that could have been! I've always assumed it was a ghost. Another time I saw it on the stairs..I looked up the stairway and there it was.
I watched this last night, I had no idea it was gonna be so scary. Very creepy. It reminded me of Jack the Ripper's story. That story gives me the creeps too. They never caught him.