Psychological Horror Movies refer to a sub-genre of horror films that primarily focus on the mental, emotional, and psychological states of characters to frighten, disturb, or unsettle viewers. Often intertwined with mystery and thriller genres, these movies utilize atmosphere, suspense, and a deep understanding of human psychology to deliver scares, rather than relying on overt violence or gore. They may explore themes such as insanity, paranoia, manipulation, and the subjective perception of reality, thereby creating a sense of dread and terror. Note that while they can sometimes feature elements of slasher movies, they are distinct in their emphasis on the psychological over the physical.