A horror film is a genre of cinema designed to evoke fear, dread, or shock in its audience. These films often feature supernatural elements, monsters, or psychological themes that create tension and suspense. Common tropes include haunted houses, serial killers, and paranormal activities, which aim to explore the darker aspects of human nature and the unknown. Typically, horror films use visual and auditory techniques, such as eerie music and sudden jump scares, to enhance the emotional experience. Iconic examples of horror films include Psycho, The Exorcist, and Halloween, each contributing to the genre's evolution and popularity over the years.