A psychological horror film establishes seemingly normal settings and characters to create an unsettling atmosphere. Main characters are often women to emphasize their vulnerability. Common character types include young adults, the mentally or emotionally unstable, goths, detectives, and partners. Music and sounds are carefully crafted to enhance tension, suspense, and the feeling of being watched or followed. Cinematography also builds dread through low lighting, obscurity, and point-of-view shots. Common plots and icons reference haunted houses, symbols of death, masks, screaming victims, and phallic weapons.