The document discusses the key elements and conventions of the thriller genre, including the use of suspense, tension, anticipation and excitement to keep audiences engaged. It outlines several thriller subgenres and describes common cinematic techniques used in thrillers like fast camera shots, low key lighting, diegetic and non-diegetic sounds, plot twists and the protagonist's point of view. The document also examines mise-en-scene elements like lighting, color, settings and props that are typically used to set the tone for thriller films.