Setting: Dangerous Workplace
Plot: Subverted Suspicion Aesop
Narrative Device: Needle In A Stack Of Needles
Hero: Noble Savage
Villain: Bigger Bad
Character As Device: The Pawn
Characterization Device: What Is This Feeling
Dangerous Workplace could definitely work, as well as Bigger Bad and The Pawn. Subverted Suspicion Aesop could work - say the main character suspects a coworker, but it turns out that the coworker was just trying to warn him or something? Noble Savage definitely won't work however. Don't know how I would use the Stack of Needles one or What Is This Feeling.
I'm afraid you have failed by TV Tropes. You have outlived your usefulness.
Nah, you'll always be useful. But damn writer's block is still blocking away.