Based on the core genes of Northeastern folk ghost stories (shaman culture, deep mountains and old forests, ghost legends, wronged souls demanding lives, harsh environments, and ancestral taboos), combined with the needs of modern horror and suspense, 20 script outlines with their own evil spirits are generated:
* Forests and snowfields, abandoned factories and mines, old villages, frozen rivers, and cellar kangs.
* Chuma fairy, Baojiaxian (fox yellow and white willow ashes), dead ghost, frozen bones, soul-calling flags, old objects, ancestral graves, taboos.
* Biting cold, boundless loneliness, thick fog, weird sounds (sounds of stepping on snow, whining wind, scratching nails), visual distortion (snow blindness, shaking lights).
* Karma, violation of taboos, human heart is more poisonous than ghosts, nature's wrath, forgotten resentment.
