疑神疑鬼

疑神疑鬼:

Literally means:

doubt god, doubt ghosts

Actually means:

extremely suspicious paranoid

This phrase describes people who are unusually suspicious and tend to make wild guesses.

Usually it emphasizes the fact that all the guesses are groundless and unreasonable, often derogative.

形容疑心太重，胡乱猜疑。

多指所怀疑的都是没有事实根据的。具有贬义色彩。