Tip: If you want to create an eerie or gloomy scene, toying with the color saturation does wonders. The duller the colors, the better, in these types of settings.
The breeze is blowing, the house is creaking, it's a little dark and you're all alone. Or so you think. Is that breathing? Is someone right behind you, or is that just the usual draft? Oh! And what just went bang down the hall? Who are you gonna call? Ghost busters.
Or maybe it is a friendly spirit- perhaps your father died and you just regularly communicate with him in his new form. Maybe it's the ghost of a small child, whose feet patter down your hallways in the evenings. Sure, it's a little eerie, but perfectly harmless, right?
Job 7:9 says "As a cloud vanishes and is gone, so one who goes down to the grave does not return." If that is the case, what are those apparitions the ghost hunters catch? What are these figures that curios ghost trackers are stalking? At best, figments of the imagination, however if there is something there of the supernatural realm, the only options are either demons or angels, for the dead are forbidden from coming back into the world: