Psychological horror depends on the mental, emotional, and psychological status of characters to frighten or unsettle readers, viewers, or players.
 These become important as the characters face perverse situations, sometimes involving the supernatural, immorality, murder, and conspiracies
 In other cases, the narrator or protagonist may be reliable or ostensibly mentally stable but is placed in a situation involving another character or characters who are psychologically, mentally, or emotionally disturbed

