A plot device or plot mechanismFor example:
is any technique in a narrative used to move the plot forward.
A clichéd plot device may annoy the reader and a contrived or arbitrary device may confuse the reader, causing a loss of the suspension of disbelief. However, a well-crafted plot device, or one that emerges naturally from the setting or characters of the story, may be entirely accepted, or may even be unnoticed by the audience.
In the Indiana Jones film series, each film portrays Jones on the hunt for a mystical artifact. In Raiders of the Lost Ark, he is trying to retrieve the Ark of the Covenant; in Indiana Jones and the Last Crusade, Jones is on a search for the Holy Grail. This plot device is also used in the Arabian Nights tale of "The City of Brass," in which a group of travelers on an Archaeology expedition journeys across the Sahara to find a brass vessel that Solomon once used to trap a Genie.
Several books in the Harry Potter series orient around a search for a special object. In Harry Potter and the Philosopher's Stone, Harry believes there is a magical stone in Hogwarts with special powers. Lord Voldemort needs this stone to bring back his body, and Harry looks for the stone first to prevent Voldemort's return.
The One Ring from J. R. R. Tolkien's novel, The Lord of the Rings has been labeled a plot device, since the quest to destroy it drives the entire plot of the novel. However, British Classical scholar Nick Lowe said: "Tolkien, on the whole, gets away with the trick by minimizing the arbitrariness of the ring's plot-power and putting more stress than his imitators on the way the ring's power moulds the character of its wielder and vice-versa."
The Latin phrase "deus ex machina" has its origins in the conventions of Greek tragedy, and refers to situations in which a mechane (crane) was used to lower actors playing a Greek god or gods onto the stage at the end of a play.
The Greek Tragedy Euripides is notorious for using this plot device as a means to resolve a hopeless situation. For example, in Euripides' play Alcestis, the eponymous heroine agrees to give up her own life to Death in exchange for sparing the life of her husband, Admetus. In doing so, however, Admetus grows to regret his choice, realizing that the grief of her death would never leave him. Admetus is seized by guilt and sadness, wishing to keep her or die alongside her, but held by his obligations to raise their children. In the end, though, Heracles shows up and seizes Alcestis from Death, restoring her to life and freeing Admetus from the grief that consumed him. Another example of a deus ex machina is Gandalf in The Hobbit. With the help of seemingly limitless magical capabilities, he rescues the other main characters from all sorts of troubles. Likewise, the eagles in both The Hobbit and The Lord of the Rings perform unexpected rescues, serving both as the eucatastrophic emissary and the agent of redemption. The first person known to have criticized the device was Aristotle in his Poetics, where he argued that the resolution of a plot must arise internally, following from previous action of the play.
MacGuffins are sometimes referred to as plot coupons, especially if multiple ones are required, as the protagonist only needs to "collect enough plot coupons and trade them in for a dénouement". The term was coined by Nick Lowe. In normal usage, when people talk of a plot device they mean something in the story that's just a little bit too obviously functional to be taken seriously.
A plot voucher, as defined by Nick Lowe, is an object given to a character (especially to the protagonist) before they encounter an obstacle that requires the use of the object. An example of a plot voucher is a gift received by a character, which later impedes a deadly bullet.
The idea of a shoulder angel and devil consulting the person in the center of the dispute is a tripartite view of the divided soul, that contributes to a rich tradition involving Plato's Chariot Allegory as well as id, ego and super-ego from Freudian psychoanalysis. The difference with other views is that the shoulder angel and devil emphasize the universal ideas of good and bad.
Examples
Deus ex machina
Love triangle
MacGuffin
Quibble
Red herring
Shoulder angel
See also
External links
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