The document discusses how social groups are represented in the filmmaker's thriller film. It notes that most characters in thrillers are typically older but they cast younger actors due to resource limitations. Males are often portrayed as antagonists using power and dominance while females are usually depicted as vulnerable victims. The film follows conventions by having the investigation prompted by the death of a female character who is not shown on screen. Class and age are represented through characters' professions and costumes, with most appearing middle-class and between ages 18-22 to fit within their casting abilities.