Thriller fiction features ordinary heroes facing off against villains trying to destroy them or undermine stability. Thrillers are fast-paced with action, plot twists, vivid settings, and tension that builds until the climax. They often involve life-or-death stakes where the protagonist, such as a law enforcement agent or soldier, must overcome obstacles alone or in a small group cut off from resources. Part of thrillers' appeal comes from their gripping stories and rapid pacing, which has made the genre popular in both literature and film.