The effect thrillers have on audience

A thriller provides a sudden rush of emotions, excitement, and exhilaration that drive the narrative, sometimes subtly with peaks and lulls, sometimes at a constant, breakneck pace. It keeps the audience on the "edge of their seats", similar to a sensation of hanging from a cliff, as the plot builds towards a climax. Literary devices such as red herrings, plot twists, and cliffhangers are used extensively. A thriller is usually a villain-driven plot, whereby he or she presents obstacles that the protagonist must overcome.
Common subgenres are psychological thrillers, crime thrillers, erotic thrillers and mystery thrillers. Successful examples of thrillers are the films of Alfred Hitchcock. The horror and action genres often overlap with the thriller. Thrillers tend to be psychological, threatening, mysterious and at times involve larger-scale villainy such as espionage, terrorism and conspiracy.