succubus
something that causes unpleasant problems for someone: 梦魇般的精神压力;沉重的负担
They are powerless to throw off the incubus of the past.他们无力摆脱过去的阴影。

SMART Vocabulary: related words and phrases

Souls, spirits & ghosts
apparition
astral plane
astral projection
aura
chi
ectoplasm
haunted
incorporeal
necromancer
necromancy
Ouija board
reincarnation
soul
spectrally
spectre
succubus
séance
wight
wraith
zombie

You can also find related words, phrases, and synonyms in the topics:

Difficult things and people