That your heart desires
But the consequences
Will surely be dire!"
These bad guys trap you by preying upon your desires. They know what you want and are willing to offer it to you—or so it would seem. They show you things you've always dreamed of, presenting you with the very thing that your heart yearns for. However, Be Careful What You Wish For. Temptation can be a powerful and dangerous thing, and is sometimes harder to resist than any overt danger.
This is a favorite technique of the Master of Illusion, who may use it to trap others in a Lotus-Eater Machine, or the kinds of monsters that get satisfaction out of manipulating their victims' emotions. After all, it's much easier to catch flies with honey than with vinegar, and the victim often won't even be able to realize the danger until it's too late. Even if s/he realizes it's not real, the power of the desire may entice them to remain "deceived." The Deal with the Devil also frequently runs on this trope, exacting a horrible price in exchange for one's heart's desire, frequently in a way that makes it not worth it in the end. This is why your parents always told you not to take candy from strangers.
- In Nabari no Ou, the Shinrabanshou often tries to tempt Miharu into telling her his greatest desires, and then she will grant him her destructive power, regardless of whether his body can handle it.
- In Magical Girl Lyrical Nanoha A's, the Book of Darkness trapped Fate in a world where her Evil Matriarch of a mother loved her and the dead girl she was cloned from was her Cool Big Sis. Fate even admits that this is what she always wanted as she breaks down in tears. This was meant to be a case of Let Them Die Happy rather than any form of malice, but ended up being crueler than any torture could have been since Fate knew almost immediately that it wasn't real (and that it never would be). Although it does help Fate come to terms with being a separate person from Alicia and accept Lindy's offer to adopt her.
- In For the Man Who Has Everything a Lotus-Eater Machine of this sort is used on Superman, who hallucinates that he's back on Krypton.
- Rare hero example: Danielle Moonstar, AKA Mirage of the New Mutants, could create a mental illusion of your worst fear, or your heart's desire. She could choose which one, but even she couldn't know what her victim was seeing.
- The X-Men annual Lost in the Funhouse revolved around this - Horde, the villain of the issue, sent the team to a Citadel to retrieve a MacGuffin on pain of destroying their world if they refused. The citadel's defence mechanism was offering intruders a vision of their heart's desire one-by-one. When it couldn't find Longshot's desire due to his "purity", it cut out step two and absorbed him.
- In DC's Legion of Super-Heroes, when Shrinking Violet was under the influence of the Emerald Eye (unbeknownst to her teammates), she started granting the Legionnaires their hearts' desires. It went fairly well until Leviathan got his, which was to die as a hero. Attempting to bring him back to life, Violet was taken over entirely by the Emerald Eye.
- Black Mamba of the B.A.D girls (seen in Cable & Deadpool, among others) can temporarily incapacitate people with an illusino of their ultimate fantasy. This failed to work on Shen Kuei / the Cat, a Gentleman Thief and martial artist who already is living his ultimate fantasy.
- In The Princess and the Frog, when Tiana steals the magical talisman that Facilier needs for his evil plan, he conjures up a vision where she's a human again, in the dream restaurant that she's been working for years to open, and offers to give it all to her if she hands it back and lets him keep Naveen. At this point, however, she realizes that she needs her restaurant and Naveen to be happy, and tries to smash the talisman instead.
- The female 'space vampire' in Lifeforce took her appearance (her natural form is a winged alien creature) from the subconscious desires of the astronaut who found her. This gives him an unhealthy obsession with her, even after he discovers she feeds on Life Energy and is entirely capable of destroying the world.
Carlson: What are you? Why are you so human, so perfect? What were the bird-creatures on the [space]ship?
- Larry Niven's Known Space series had a gadget called a droud, which stimulated the pleasure centre of the brain directly. Users quickly became addicted and eventually starved to death, immobile in a puddle of their own wastes. Humanity had given up trying to treat the problem, regarding it as Darwinsim in action in a society which was, in any case, hugely over-populated so there was no value is trying to save people who would have nothing to contribute
- In the novel Something Wicked This Way Comes by Ray Bradbury, the carnival tries to entice the boys by showing them exciting and marvelous things. Particularly Jim, who is fascinated by it, and who also has a desire to become older.
- Stanley G. Weinbaum's science fiction short story "A Martian Odyssey" had a carnivorous plant monster that read the mind of its victim and created a mental illusion of what the victim most desired to lure it into the plant's clutches.
- The short story "A Part of the Game" in Dragon magazine #51. A group of desert travelers find an oasis which appears to be a gate to a utopian other world. Most of the group enters the pool only to be eaten by its inhabitant, a monster that can create beautiful illusions.
- Harry Potter had the Mirror of Erised, which shows the viewer whatever their greatest desire is. Ron, who feels overshadowed by his siblings, sees himself outdoing them all. Harry, who never knew his real family, sees himself with his parents and relatives. Dumbledore mentions that it can be highly addictive, however. Dumbledore hides the Philosopher's Stone "inside" the mirror as its final measure of protection—someone who wants to use its powers will just see themselves doing so, but someone who wants the stone for itself, without intent to use it, will magically obtain it.
- In The Dresden Files. Primary modus operandi of the Denarians. The Shadows of the Fallen Angels are just as powerful and knowledgeable as their original forms, but need a willing Host to allow the Fallen to fully enter the person. While it could be lies on the Fallen's side, one way to break their Host is to offer them this idea. One White Court vampire who genuinely loves a mortal woman and is loved in return is burned by that Love they feel towards each other as it is a poison to his incubus demon within. While he is originally feels he could resist the Shadow's offer, when told it could grant him a way to be with his beloved and not fear being hurt by her love, he goes silent, recognizing the effectiveness of this tactic.
- In Pact, Faysal Anwar, Gatekeeper of the Seventh Ring, offers Blake Thorburn a choice of either immortality (by giving him the ability to return from death indefinitely) or humanity (by restoring the pieces of Blake that were torn away when Blake fell through the cracks in the world), if he'll come work for Faysal's master Johannes. To Blake, who ultimately just wants to be free, both are incredibly tempting not for themselves but what they'd allow him to do.
- Red Dwarf: Back to Earth has a joy squid (opposite of the despair squid in earlier episodes.) Both had the same effect of trapping you in a hallucination until you die.
- The "total-immersion video game BetterThanLife was pretty much this.
- Star Trek: Voyager: In the episode "Bliss", the space-borne equivalent of a pitcher plant tricked the crew of Voyager into entering it by making it appear to them as a wormhole they could use to return home and be reunited with their loved ones. The only people unaffected were the Doctor (a hologram, but the creature tricked the rest of the crew into shutting him off) Seven of Nine and Naomi Wildman (who, only being familiar with life on Voyager, had no real desire to go to Earth) and a Captain Ahab-type alien captain who had been hunting the creature (and was thus familiar with the creature's tricks). It does briefly work on Seven at the end when the creature makes her imagine escaping from it, which she did genuinely desire at that point.
- A whole episode of the original Star Trek, "The Man Trap", was all about this, disguising itself as a woman who had been dead for some years in order to be protected by the woman's widower and to prey on her old flame.
- The Greeed from Kamen Rider OOO are all about this. They are basically ancient homunculi who feed on humans' desire indirectly via their Yuumies.
- Supernatural: The Djinn trap their prey by making their deepest wishes come true—by putting them in a hallucinogenic trance while the Djinn drains all their blood over the course of several days. Dean was once caught by a Djinn who made him experience an alternate world where the Winchesters' mother was never killed by a demon.
- Blake's 7. Averted in "Headhunter", when Master Computer Orac is taken over by the Monster of the Week.
Orac: Join us, Soolin. We can fulfill your every desire.Soolin: [Turning Orac off] You wouldn't know where to start.
- Battlestar Galactica (1978), episode "War of the Gods Part 1". The mysterious being known as Count Iblis can read the mind of anyone he talks to and determine their greatest desire.
- This goes all the way back to the Sirens of Classical Mythology. They would sing a song that made them irresistible to sailors, who would steer their ships toward the sound. Then the ships would hit the rocks surrounding the sirens and sink.
- In a great many stories Satan is said to know Your Heart's Desire in order to get you to sign a Deal with the Devil. Far too many stories to list, really.
- Several examples of Jackass Genie.
- Li'l Abner: On August 31, 1948, cartoonist Al Capp introduced the schmoo, a bewhiskered white blob of a creature that looked like a bowling pin with legs. Schmoos seemed to exist only to provide humanity with its every need. Capp said he came up with the idea of the schmoo when he was driving through the New England countryside and saw the abundance that the earth provided. People of all political stripes — communists and capitalists alike — saw the schmoos as an analogy critical of their beliefs. (The fact that "schmoos" rhymes with "schmooze" didn't help.) Schmoos were Explosive Breeders that laid eggs and could give milk. If they really loved you, they'd could lay a cheesecake. And if you expressed a desire to eat a schmoo, one of them would die of ecstasy just to provide you with the opportunity. Naturally, a schmoo Tastes Like Chicken. Fed up with all the controversy over a character he claimed was nothing more than a commentary on the abundance of nature, Capp carried out a Writer Revolt by slaughtering the entire species in December. The Other Wiki has a more detailed analysis of the schmoos here.
- SCP Foundation
- SCP-157 ("Mimetic Predator"). SCP-157 uses telepathy to project an illusion that it is something the target would want to eat, wear, or apply to its body.
- When viewed, SCP-071 ("Degenerative Metamorphic Entity") changes its form to match that of its observer's strongest sexual desire, even if that sexual desire is for dogs or corpses. If the observer has sex with it, he or she suffers significant temporary and permanent negative side effects.
- SCP-699 ("Mystery Box"). 90% of people who look at SCP-699 see that it holds "something they want to possess or to release...", such as "...precious metals, artwork, family members, pets, religious figures, and apparently useful technology..."
- SCP-1888 ("Terraforming Temple"). When a sapient creature looks inside the "Treasure Room", it sees some extremely valuable object(s) appropriate to its own knowledge. For example, a jewel thief would see precious stones and gems, a nuclear physicist would see a cold fusion reactor, and so on.
- Dungeons & Dragons
- 1st/2nd Edition
- Adventure S4 The Lost Caverns of Tsojcanth. A group of dao (similar to djinn) create an illusion of a desirable setting to lure the party into a cave. When the party enters, the dao attack.
- Dark Sun/World of Athas campaign setting. The Red Silt Horror uses its telepathic/ESP abilities to determine what its target desires most, then uses its False Sensory Input power to create an image of the desired item. After its target moves close to it, it attacks.
- Forgotten Realms supplement FR4 The Magister. The Cloak of Delight can cause any creature that sees it to fall into an motionless and oblivious trance for 1-8 minutes by showing the creature its ultimate pleasure and goal. The creature will maniacally attack any creature or thing that blocks its view of the Cloak. If its view is blocked by something without solid form (e.g. darkness or smoke) the trance ends.
- 3rd Edition. Creature Collection supplement. The Dweller at the Crossroads is a sinister figure that knows its victim's greatest wish and can grant it - for a price. Every gift the dweller gives is cursed in some way to bring corruption and misery to the person receiving it.
- 1st/2nd Edition
- Shadowrun has an Awakened creature ability called "Desire Reflection" that allows the creature to know the greatest desire of another being and trick that being into believing that the creature is that thing.
- Paranormal Animals of North America: Incubus
- Paranormal Animals of Europe: Blackberry Cat, Kludde
- Critters: Quicksilver Mongoose, Siberian Firebird
- Neverwhere RPG. The angel Islington can see into peoples hearts and offer them what they most desire.
- Subverted in the Gamescience's Space Patrol RPG. In an example of play a man walking through a forest sees a beautiful nude woman. Believing that such coincidence is only possible in the movies, he decides that the woman is an illusion created by a man-hungry alien monster. He draws his blaster and fires at it, reducing it to its component atoms. The text reveals that the man was wrong: it was a real woman and he is now a murderer.
- Chaosium's supplement All the Worlds' Monsters Volume III. The Dream Beast is a telepathic plant can cause any creature looking at it to see whatever it wants most. Once the target gets close enough, the Dream Beast grabs it with its 5-10 Combat Tentacles and drags it in to be eaten.
- SPI's Dragon Quest supplement The Enchanted Wood. The PCs will encounter a living bog that can generate illusions of desirable things to lure them into itself. The bog tricks the characters by creating the illusion of a castle which appears to be a Rest-and-Resupply Stop. When the PCs touch it, it disappears and reveals that they are trapped in the bog.
- TSR's Amazing Engine system setting supplement Bughunters. Polyhedron magazine #106 had an article called "Bugging the Hunters" with dangers that UTPRF Marines could face. One is the device known as the Siren. It uses mechanical telepathy to summons humans to its location and makes them see whatever they desire most. When they approach the Siren, it strangles them with its tentacles.
- Steve Jackson Games' In Nomine. When a Lilim (a type of demon) looks into someone's eyes, they can see that person's greatest need. They can then use their demonic abilities and resources to meet that need and gain a geas (control) over that person.
- In The Order of the Stick, this is what the final illusion in Girard Draketooth's pyramid does, trapping anyone in a Lotus-Eater Machine so that Girard's clan can kill them. However, by this point, Girard's entire clan is dead, having fallen victim to V's Familicide spell. Interestingly, it is Elan who breaks the Order out of it by realizing his heart's desire (seeing his dysfunctional, broken family reunited) is too unrealistic to ever happen.
- The Series of Aladdin had a variant in one episode: a small, timid animal that can do this whenever scared, hoping to distract a perceived threat. Naturally, Iago and Abu continually frighten it just to get stuff. In the end, Iago used a mirror to make the critter scare itself so it would grant its own heart's desire: to go home.
- The VeggieTales episode "LarryBoy and the Bad Apple" dealt with the aesop of temptation and how difficult it is to fight it by revolving around a dangerous villain who literally trapped her victims inside their own obsessions.
- An accident more than a malicious act, but the My Little Pony: Friendship Is Magic episode "Cutie Pox" involves Apple Bloom misusing a plant that's outright called Heart's Desire in order to get her cutie mark. She got it, all right... dozens of them.
- Fantastic Voyage. In "The Magic Crystal of Kabala", when the protagonists enter the title magic item they are each exposed to a fantasy that fulfills their heart's desire in an attempt to entrap them.
- This is common with pedophiles and sexual predators, and the process is called grooming their victim.