This is the nightmare that has plagued me for four years now.
A few years ago I had a dream that I was at my father's house visiting. My father, brother, and I were going outside to look at my car (we were fixing it up at the time) but something was off. I saw a figure in the dark behind some trees, shuffling.
I thought it was a dog at first, until it stood up. It was much too big (about six to seven feet) to be a dog. When I tried to get a better look, it crouched down and ran behind the house.
I tried to put it out of my mind. We walked closer to the car and I heard rustling by the tree again. I looked at my dad to see if he heard anything; it didn't look like he did, but he started to walk away with my brother. I heard the noise louder and I started to run towards my brother and father.
I looked behind me to a creature that was black and bloody, wearing a long black dress. It had long sharp teeth and claws with white glowing eyes, and it was screaming at me so loud that my ears were hurting. I tried to grab my brother's arm, but my hand phased through him and he and my father looked normal as the creature screamed at me.
I fell on the ground trying to get away but it caught up with me, wrapping its hands around my neck. I felt the claws dig into the back of my neck. As I cried, it continued choking me and screaming for what felt like forever but was probably about 30 seconds. Just as I felt my lungs start to fill with blood, I woke up. I couldn't move for about 10 minutes; I was frozen in fear in my bed, tears running down my face. I tried to scream but I couldn't, I could barely breath.
Every now and again I see her again in my dreams... watching... waiting.