The opening sequence of The Texas Chainsaw Massacre uses several horror and thriller conventions including graphic violence, news reports of murders, and a dark and ominous musical score. It establishes the rural setting and mysterious tone through the use of camera shots of deserted landscapes and darkly-lit interiors. Non-diegetic sounds like heartbeats heighten the tension and pace through fast editing and cuts between shots. The target audience is older teenagers and adults who can appreciate the film's graphic content.