I dont think this is really considered a ghost story, but it really freaks me out. My sister told me this story. She said when she went to college that there was a murder in one of the dorms now here is the story about it.
A girl was coming home late from a party that she was at. When she opened the door to her room, her room mate was already in there, but she wasnt alone, it was dark in there and she saw two figures on the bed. So she thought her room mate was doing bad things, so she decided not to turn the light on and just go to bed.
But when she woke up in the morning her friend had been cut up and there was blood every where. And on the mirror, in blood, was written Arent you glad you didnt turn on the lights
Well thats the end. Have a good one.