In one of my dreams which I remember surprisingly well went like this:
An old-timy styled village had had a witch terrorizing the townsfolk, and one day the villagers had managed to kill the witch by burning the hut with her inside it. The village was located in a countryside near a swampland where the witch had lived in.
The townsfolk had lived peacefully for a long time until people had forgotten the witch. Until one of the villagers goes to the swamp where the witch had one lived and accidentally awakens the witches ghost.
The man ends up hauted by the witch and he starts to see her naked body and hear her honeyed words almost everywhere, in trees, in every shadow, even the distant lands seemed to change shape.
The witch looks like she did when she was alive; gorgeous. Imagine a body that ANYONE would want, man and woman, stirring lustful thoughts in your head. However, behind the luscious lips were the needle-like teeth of a monster. And the long, glistering hair, running down her face hid behind her eyes, which were like two orbs of absolute darkness that were set ablaze with pupil of hellfire red.
She could only haunt one person at a time and was bound to that person until he or she killed someone, after which she could turn the haunted person into her mindless slave and haunt someone else. Her methods were aggrovating the one she haunted and see someone as her, and keep taunting until that person had killed.
But she was almost powerless near fire, and she cowered before it.
She slowly tried to destroy the whole village, until I woke up. It was rather interesting and oddly specific dream.