Psychological horror has nothing in common with psychological thrillers.
The subgenre frequently overlaps with the related subgenre of psychological thriller , and it often uses mystery elements and characters with unstable , unreliable , or disturbed psychological states to enhance the suspense and horror of the setting and plot and to provide an overall unpleasant , unsettling , or distressing atmosphere .	subgenre	genre	horror	horror fiction	psychological thriller	psychological thriller	mystery	mystery fiction	suspense	suspense	atmosphere	Mood (literature)
