Chekhov's Gun
The principle that every element introduced in a story should serve a purpose; if you show a gun, it must eventually fire.
Last updatedChekhov's Gun is a dramatic principle attributed to the Russian playwright Anton Chekhov, who stated: "If in the first act you have hung a pistol on the wall, then in the following one it should be fired." The principle holds that every element in a story should be necessary and irreplaceable. If something is introduced with prominence, it should pay off later. Otherwise, it creates a false promise to the reader.
In The Shawshank Redemption, the rock hammer Andy requests early in the film seems like a minor detail for a hobby. Its true significance is only revealed at the climax, making it a perfect Chekhov's Gun. In Breaking Bad, the ricin cigarette is introduced and reintroduced across multiple seasons before finally being used, demonstrating how the principle can operate across a long narrative.
A common misconception is that Chekhov's Gun means every object must be a plot device. The principle is really about narrative economy and reader trust. Details that establish character, mood, or setting are doing work even if they never become plot-relevant. The principle warns against details that seem significant but lead nowhere, because they train the reader to distrust the author's choices.