A plot twist is a radical change in the expected direction or outcome of the plot of a novel, film, television series, comic, video game, or other work of narrative. It is a common practice in narration used to keep the interest of an audience, usually surprising them with a revelation. Some "twists" are foreshadowed. When a plot twist happens near the end of a story, especially if it changes one's view of the preceding events, it is known as a surprise ending.Sometimes people use a plot twist to describe a sudden change of a situation in real life.It is often assumed that revealing the existence of a plot twist spoils a film or book, since the majority of the film/book generally builds up to the plot twist; however, at least one study suggests otherwise. A method used to undermine the expectations of the audience is the false protagonist. It involves presenting a character at the start of the film as the main character, but then disposing of this character, usually killing them – a device known as a red herring.

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