What is a plot device?
A mechanism that drives the plot forward or resolves it.
How to spot it: The thing that makes the next event happen: a MacGuffin, a red herring, a Chekhov's gun.
Often confused with trope: A plot device does a job in the machinery; a trope is a pattern readers recognize.
12 plot devices in the vocabulary
MacGuffin
An object, goal, or piece of information that drives the plot and motivates the characters while mattering little in itself.
3 works
Red herring
A misleading clue or subplot deliberately introduced to divert the audience's suspicion away from the truth.
1 work
Chekhov's gun
The principle that a conspicuous detail introduced early must become significant later; nothing is shown without purpose.
4 works
Deus ex machina
An improbable, external intervention that abruptly resolves the plot's central problem.
1 work
The prophecy
A foretelling within the story that sets characters on a course and shapes expectations of how events must unfold.
3 works
Time loop
A device in which a character relives the same stretch of time repeatedly until some condition is met or lesson learned.
7 works
The ticking clock
A device imposing a hard deadline on the characters to escalate tension and force decisive action.
7 works
Amnesia
A device in which a character's loss of memory conceals information, drives a search for identity, or creates suspense.
2 works
The mysterious signal
A device in which an unexplained transmission, artifact, or message sets the investigation and plot in motion.
3 works
The deadly game
A device organizing the plot around a lethal contest, tournament, or arena the protagonist must survive.
2 works
The forbidden knowledge
A device in which access to dangerous knowledge or a forbidden discovery irreversibly sets the tragedy in motion.
1 work
The engineered contagion
A device in which a disease, plague, or biological agent drives the plot toward collapse, quarantine, or survival.
4 works