The villain has formulated an Evil Plan so dastardly and Machiavellian that the audience is unlikely to pick up on it on their own. Naturally, the villain wants to keep the details from the heroes, but it is important that the audience know what's going on. In this case, the villain will discuss his plan with a random group of subordinates, a group of business partners (or partners-in-crime), hostages, his family, or some other group. He will gleefully lay out every last detail of his plot with an evil glee.
Then he kills each and every member of his audience off in some pre-arranged fashion (usually a deathtrap of some sort). That way, the audience knows of the villain's plan, but there's no one who can betray the villain by talking to the hero.
It must be noted that the villain doesn't necessarily need to kill every meeting-attendant. If he is the more pragmatic sort, he will spare some select members, usually the ones he still needs for his plan. Or he might even kill just one person, usually the one who is having second thoughts and/or is most outspoken against his plan/leadership. Either way, such cases serves not only as exposition, but also as a way for the villain to display a clear message to his partners/subordinates: "Do as I say, and You Will Be Spared. Cross me and you're next on the chopping block." If it hasn't happened earlier, this will usually be the moment that cements the villain as a Bad Boss.
Related to You Have Failed Me, You Have Outlived Your Usefulness, He Knows Too Much, and Thrown from the Zeppelin. Sometimes includes Lured into a Trap and/or Nasty Party. In part, it plays to the fantasies of anyone who's been in an annoying or boring meeting, and the desire to kill their clueless bosses. Especially note confusion with Thrown from the Zeppelin, of which some examples on this very page are. This is only for when ALL of the audience dies. Thrown from the Zeppelin is when traitors are killed.
As a Death Trope, all Spoilers will be unmarked ahead. Beware.
- Death Note:
- When Light realizes he's being tailed, he comes up with a convoluted plan of going on a fake date, manipulating a criminal with the Death Note into hijacking the bus and eventually dying, just so the FBI agent, Raye Penber, has to reveal his name and face to Light. Whom he then immediately manipulates into effectively killing the other FBI agents as well as Raye himself.
- Much later on, Light makes sure to manipulate Takada into doing his bidding and having her stay on guard, in case she gets kidnapped by one of his opponents. When she does, she has been hiding a piece of the death note on her body and kills the opponent by writing his name down. Immediately after giving him the good news, Light forces Takada to commit suicide by writing it in the death note.
- Set up, then subverted at the start of Vexille. The Dragon gives a very broad outline of a plan (which isn't even the real one), then the board dies from poisoned drinks.
- During the Dark Tournament arc of YuYu Hakusho, Sakyo reveals his plan to open a gateway to the Spirit World to the rest of the Black Book Club and then has Toguro kill them when they object.
- Parodied in an issue of Action Comics, in which Lex Luthor, whose building (along with the rest of Metropolis) was recently replaced by a 64th century version of itself by Brainiac 13, is being shown what all the buttons on the control pad next to his seat in the LexCorp board room do:
Luthor: Splendid. And this?
Minion: WAIT! Uh— heh— that switch apparently causes the chairs around the conference table to flip backwards, dumping its occupants through a floor panel down through a chute into a vat of acid, sir.
Luthor: This is a joke?
Minion: No, sir. We lost two men today before we restudied the schematics.
Luthor: Hmm. Just when I thought the Luthors couldn't stoop any lower, my successor installs Death Traps into the board room. I love the future.
- Block 109: After disposing of Heydrich, Zytek gathers the other major Nazi leaders in the Third Reich's command room so he can kill them all in one fell swoop for their endless crimes against humanity.
- Subverted in Hellboy when Landis Pope has a board meeting. Everyone comes in to find Pope wearing a bizarre battle suit surrounded with black flames and flanked by his demonic frog minions. One starts to demand what on earth he's been up to, and instead of killing them he just announces that he now controls 51% of the company's shares, and they are all fired. They leave and play no further role in the story.
- Preacher: Herr Starr gives up on the Grail's plan for global domination and devotes all his energy to killing Jesse Custer. He arranges a video conference with the high council and tells them all about his plan to undermine the Grail from within. Then he lists off all the indignities he's suffered in pursuit of his goals, culminating in him dropping his pants and revealing the tube where his penis used to be. Having (literally) revealed everything, Starr gasses the council and readies his troops for a final showdown with Jesse by the Alamo.
Council Member: [choking on chlorine gas] Starr No Don't You kill the Grail, you damn the world this is about mankind's salvation...
Starr: This is about my genitals. Go on to extinction, holy men.
- Ozymandias does this with his lab assistants in Watchmen. In a subversion of the trope, his speech reveals nothing about the plan itself (which is saved for The Reveal to the heroes themselves) and is merely a partial retracing of how they've come to this stage and a praise to his subordinates for the integral part they played in it after which they are killed off painlessly because they knew too much and not because Ozymandias felt the need to tell them what they already knew. Furthermore Ozymandias clearly considers the deed Dirty Business and explains (to their drugged and soon to be frozen to death bodies) that he feels ashamed at having to reward his faithful retainers with "such an inadequate reward".
- Modesty Blaise: The Big Bad in "Children of Lucifer" plans to do this to a group of mafiosi who have been his partners in crime. He seals them in the board room, and forces them to watch a Happier Home Movie while he delivers a Motive Rant about why he is going to kill them. However, his treacherous lieutenant chooses this moment to literally knife him in the back and announce that he is taking over the operation.
- Austin Powers: International Man of Mystery: Dr. Evil's underground lair is designed with these sorts of boardroom chairs for disposing of freakin' idiots. But they don't always get the job done quickly, as shown when he literally fires Mustafa. Mustafa's fate is a fire pit, which fails to kill him, only leaving him very badly burnt. After listening to his screams of agony for a minute, Dr. Evil does what he should've done from the start and just has him shot.
- Played for Laughs in the Russian comedy Balls of Fate. The Big Bad of the movie is an oligarch in possession of the eponymous artefact that allows him to warp reality in his favor. Of course, he can't resist showing off such an asset to his guests, but at the same time can't allow anybody to know. The solution? He invites some people, brags about his Balls to them, and then has his Dragon kill them all.
- In Batman (1989), The Joker kills one of the crime bosses with a trick joy buzzer and has his gang herd the others out with tommy guns. He then later kills another boss with a quill pen in the throat (presumably poisoned). As for the rest of the board, it's implied that Joker ultimately decides to "grease 'em now" offscreen... that's just how he rolls. The original script called for one goon to take out another with a flamethrower disguised as a helium container.
- DC Extended Universe:
- Wonder Woman: General Ludendorff barges in on a meeting of the German High Command, who are preparing to accept an armistice with the Allies, and exposes them all to the new toxic gas developed by Doctor Poison, wiping them out.
- SHAZAM!: A mystically empowered Dr Sivanna enters a Sivanna board room where he kills his brother, his father, and the entire board room by summoning the Seven Deadly Sins.
- In Dogma, Bartleby lists off the various sins of Mooby Inc.'s board of directors, right before Loki goes about executing them in general for idolatry — with the exception of one woman, who is declared to be an innocent and is left unharmed. Bartleby does have to stop Loki from killing her, too, because she didn't say "God bless you" when he sneezed. Loki might have been joking about that. Granting the supposition that the sneeze wasn't the least convincing acting Damon's done in his entire career, Loki probably faked the sneeze so he could do that, and the otherwise nice lady just assumed (rightly) that it was fake and didn't warrant a blessing.
- The Godfather Part III: At a meeting of the mafia Commission, Michael pays off the other dons in order to get them to stay away from his business deal with the Immobiliare corporation, but excludes his rival Joey Zasa, who storms out in a rage. Minutes later, a helicopter flies in and opens fire on the meeting, with most of the dons being gunned down.
- James Bond:
- Goldfinger, in a scene apparently staged for the sole purpose of allowing James Bond to sneak in and overhear it through a hole inside his model of Fort Knox. The original novel invoked Thrown from the Zeppelin during this scene instead.
- Ernst Stavro Blofeld does this to a few of his Mooks in Thunderball (one of the henchmen was stealing money, and he gets zapped to death) and Spectre (a henchman who was supposed to kill Mr. White gets his eyes gouged out by Mr. Hinx, then his skull bashed, and finally, his neck broken). In both cases, the other henchmen can only watch in horror as the guy gets killed.
- The assassination of the Romulan Senate after they refuse Shinzon's proposal in the beginning of Star Trek: Nemesis probably counts.
- Star Trek Into Darkness has Khan pull a Godfather III on the Starfleet High Command.
- Played with in one of the Alex Rider novels. The board needs a villain for Alex to investigate, so they kill one of their own and set him up somewhere MI-6 will know to look.
- In the short story "Nemesis" by Arthur C. Clarke* , the Master has been defeated in his quest of world domination, and his army is being destroyed. He gathers his cabinet at their underground boardroom for the last meeting, even though they all know that the war is lost, and surrender is unthinkable (and wouldn't work anyway), so they'll have to die here. However, he reveals that he plans to put himself into suspended animation for a hundred years, then begin his plans again. He then leaves, welds the metal door closed, and blocks all tunnels behind him with cave-ins.
- Star Wars Legends: In Darksaber, Admiral Daala gets all the Imperial Remnant faction leaders together in a meeting and then gases them all so she can assume control over all their forces. She does make an honest effort to tell them her plan and get them to sign on willingly; since Imperial leaders strongly tend to be short-sighted egomaniacs, it rapidly becomes clear that it'd be easier just to kill them all and do it herself. When she did and then failed miserably in her campaign against the New Republic, she fled in a huff and left the Empire to Captain Pellaeon, the shining exception to the rule, who only killed board members if they attacked him.
- Daredevil (2015): In season 3 episode 9, Wilson Fisk has the crooked FBI agents on his payroll round up a bunch of crime bosses and bring them all to a round table at a restaurant. Once they're all assembled, Fisk makes his appearance and announces that he'll sell them his protection from federal prosecution in exchange for a 20% tax on all of their profits. One of the bosses takes offense at the proposal, and refuses to buy in, stating that he knows Fisk is trying to get them to do something that'll buy him more time in his new penthouse at the Presidential Hotel. At this, Dex appears rocking his fake Daredevil costume and kills the mouthy gangster by lobbing a baton at his forehead. Fisk looks at the pool of spreading blood on the table, and calmly raises the proposed tax to 25%, which the remaining gangsters quickly cave and agree to pay.
- Doctor Who:
- "Aliens of London": In a variant, General Asquith is murdered by the Slitheen who have secretly taken over the British government, in the Cabinet room, after they reveal themselves to him. They don't tell him anything, either. All of this is witnessed by Harriet Jones (MP, Flydale North), hiding in a nearby closet.
- "The Sound of Drums": The Master kills the entire Cabinet in his role as Prime Minister. In a variation that plays even more to office fantasies, he doesn't explain anything; he just insults them (hilariously) and then kills them. Read the full exchange on the quotes page.
- Game of Thrones really likes this trope:
- Xaro Xhoan Daxos names himself King of Qarth by calling a meeting of the ruling merchants in the city and having Pyat Pree slice all their throats.
- In Season 6, Daenerys is brought before the assembled Khals, where they discuss what to do with her after her disobedient streak. They decide to rape her and then toss her as punishment... except Dany has other plans. She has them trapped in a hut made of wood and thatch, barred from the outside, with braziers not secured to the floor, and she's immune to heat injury.
- In Season 7, Arya Stark impersonates Walder Frey after having assassinated him in Season 6. She summons all the male members of House Frey to the Twin Towers for a feast, and poisons them all while giving them a stealth "Reason You Suck" Speech disguised as praise from their lord.
- The Gifted: Season 2 opens with Reeva Payge and the Frost Sisters attending a meeting of the Hellfire Club's Inner Circle, who call them out on the former's approval of the latter's extremist actions in the previous season. Deciding that the others are no longer useful to her plans, Reeva proceeds to paralyze them with her powers, allowing the Frosts to execute them. This paves the way for Reeva to assume supreme leadership of the organization.
- Luke Cage (2016): In season 1 episode 9, Mariah Dillard calls a secret meeting of Harlem's crime lords at Colon's Gym so she can sell off Cottonmouth's criminal enterprise to them. Diamondback crashes the meeting and proceeds to kill all of the bosses assembled around the table except for Mariah and Shades (who he needs as business partners to help him get his Judas bullets sold on the streets), and Domingo (to send word to others as to what happens when you double cross him).
- In RoboCop: Prime Directives, Damian Lowe spearheads the project for developing a fully-functional AI. However, the OCP board decides fire Damian for defying the CEO and ordering a team of mercs after Muprhy. Furious, Damian goes to the AI control console and orders the prototype AI to gas the board room. He later gets his comeuppance when the AI turns on him and cuts him in half with Frickin' Laser Beams.
- Stargate SG-1: Ba'al did this to all (or is it?) his clones in the second-to-last episode. They had all been cooperating surprisingly well until that point.
- Played with on That Mitchell and Webb Look when Leslie, the resident Bond supervillain, reveals the evil purpose of his organization and offers to let his board members leave in case they have moral qualms. Unfortunately, the one who does isn't easily dropped down a trapdoor because the contractor who installed it insisted on a warning light, safety barriers, and a klaxon announcing "TRAPDOOR 3 ABOUT TO OPEN," giving the victim ample time to simply stand up and leave the table.
- Command & Conquer: Generals as a backstory, has almost all the world's politicians and diplomats killed by the GLA during a Peace Conference, which leaves the Generals and other military figures in charge.
- In Command & Conquer: Tiberian Sun Firestorm, Nods Inner Circle's meet via transmission. When they meet again to question CABAL's actions, CABAL has his cyborg army kill 4 of the members save for Slavik.
- In El Matador the police are eavesdropping on a meeting of Cartel members from an apartment across the street, the guy in charge tells the others that he's always a step ahead of the police. When one of the cops understandably shows scepticism the leader says he knows the police is listening to them right now, orders his men to fire a missle launcher at the apartment and continues without missing a beat.
- Lampshaded in episode 4 of Mastermind.
"You always start off with some contrived question, like asking why you brought us all here. And then you kill the first person who answers, for 'failing you for the last time' or something. And you push the button, and the shark tank opens, and- you know this already!"/
- It turns out he's physically incapable of starting the meeting until one of the attendees dies.
- The Venture Bros.: Baron Underbeit discusses with his minions (Cataclops, Girl Hitler and Manic Eight-Ball) his plans to run the country (which are being implemented) rather than his plans to kill Venture, before revealing he knows about them betraying him (or perhaps he was being paranoid), and unleashing Tigers strapped with bombs on the board room. All show up alive later though.