Exam is a 2008 Psychological Thriller about eight job applicants vying for an amazing (but vague) position in a mysterious but powerful company. They are put into a room, and a speech is recited to them:
Black and Gray Morality: Among the applicants, there is at least one willing to do anything - no matter how terrible - to get the job. The other applicants are at different points heroic and (depending on what is being threatened and who is on the receiving end) willing to just stand by and watch.
Cassandra Truth: The Invigilator, technically. He only said that he was going to ask them one question; no one believed him.
Cerebus Syndrome: While it's never an outright COMEDY, it's hard to deny that the film was a lot more light-hearted before Brunette accidentally disqualified herself. After that point, the film takes a darker turn into sadism, torture and attempted murder, although there are moments of humor here and there.
Chekhov's Armoury: Pretty much everything in the movie comes in play later on, even a pencil!
Chekhov's Gun: Deaf's glasses, the voice-activated lights, the gun, the pencils, Blonde's hair pin, White's pills, Brown's coin, the test papers themselves; it'd be easier to list things that DIDN'T qualify.
White: It's not about what he said. It's about what he didn't say."
Ultimately, only Blonde figures out the true exact words. The Invigilator says that there is a question before them and asks only one question: "Are there any questions?". All you have to do to pass is turn in your unspoiled form and answer "No."
Foreshadowing: The question asked was "Any questions?" The correct answer: No. When the characters first start talking, one of the first questions one asks is "Anyone figure out the answer yet?" The first response given? "No."
Halfway Plot Switch: A mild example, but the main focus of the first half of the film focuses on the candidates trying to unveil hidden writing on their paper. Then White makes Brunette burn her own paper, and the rest of the film documents the candidates slowly going insane and turning on each other.
The Heavy: White is not the main/head villain but he is the one driving the plot.
Karma Houdini: Despite their actions, it's suggested in the Invigilator's opening speech that neither White nor Brown will receive any punishment.
Kick the Dog: White's process of nicknaming people - while 7/8 are simply one-word descriptors of a character's features (chiefly their hair or skin colour), they're delivered in a somewhat obnoxious and offensive manner; calling an Indian man "Brown" probably crosses the line into being racially offensive. Mocking the Chinese girl for being disqualified didn't exactly endear him to audiences either.
Large Ham: The Invigilator during the first scene.
The Plague: the characters talk about a global pandemic of some sort; people who are infected must take some (very expensive) medication every hour, on the hour, or they will fall unconscious, go into convulsions, fall into a coma, and die. Properly medicated, however, they function normally, and don't seem to be highly contagious.
Trailers Always Spoil: The trailer spoils Brunette's ruined paper, as well as footage from the final scene.
Trash Talk: Between White and Black; Brunette refers to it as a pissing contest.
Twenty Minutes into the Future: Subtly done, but the mysterious global plague and its treatment particularly the healing bullet strongly hint at wandering into sci-fi territory. The rest of the technology present is all very much present day stuff.
Two Act Structure: The first act deals with the the cast trying to reveal invisible ink on the pages; the second is more about White's treachery and the applicants turning on each other.
You want an amazing, high-paying dream job? Just what are you willing to do to get it? Lie? Cheat? Steal? Kill? For most of them: yes.
So, your company has created a drug that can heal/cure anything and make people practically immortal, making the world an infinitely better place and saving billions of lives and you need to find someone who is right for the responsibility of distributing it, since you can never hope to make enough? That's fine - just put confused, desperate people into an isolated room, give them weapons, and watch them tear each other to shreds! Justified in that the winning candidate was the only one who stayed calm, didn't resort to drastic methods, and remained thoughtful and methodical throughout, even when there were lives on the line - which was exactly the kind of person the CEO was after.
Vasquez Always Dies: No one dies, but Blonde is less aggressive and active than most of the other girls and she's the only one to figure out the question and thus finish the application, though none of them is really very Vasquez (Brunette is a vamp, Dark is a bookworm, and Chinese is out of the movie before getting a chance to display a personality at all).