Well, 'Dark Stare' can be a very chilling '2 word horror story'. 'Cold Hand' gives a sense of unease too. Also, 'Hidden Face' is quite spooky.
Here are some: 'Bedroom door creaks.', 'Footsteps in attic.', 'Eyes in the dark.'
Here are some: 'Alone in the dark.' It gives a sense of isolation and the unknown in the darkness which is quite terrifying. Another one could be 'Footsteps, no one there.' Just the idea of hearing footsteps but seeing no one is really spooky. And 'Lost in the forest' also works. Being lost in a vast and often unpredictable forest is a nightmare scenario.
Here are some: 'Alone in the dark', 'Silence then scream', 'Footsteps behind me'.
Here are some: 'Eyes in dark.', 'Footsteps behind me.', 'Face at window.'
One: In the mirror, a face not mine. I blink. It doesn't. I run. It follows.
One example could be: 'I woke in the dark. A cold hand touched my face. I heard a whisper. It said 'join us'. Then I saw the shadowy figures all around. It was my end.
Here are some: 'All teeth, no gums.' 'Bedroom, not alone.' 'Footsteps in attic.'
'Eyes in the mirror.' This is really creepy. When you think about seeing eyes in a mirror where there should be only your reflection, it's a very disturbing thought. It gives the feeling that something is watching you from the other side of the mirror, or maybe even inside the mirror itself.