This document discusses the thriller genre and the crime thriller sub-genre. It defines thrillers as using suspense, tension, and excitement to stimulate moods like anticipation, anxiety, and terror in viewers. Crime thrillers focus on the lives of criminals and criminal acts, often portraying them in an immoral or glorified way. They incorporate aspects of crime films and thrillers, with plots that center around serial killers, murders, or manhunts, building tension through both action and psychological elements by following both criminals and protagonists.