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* AccidentalAesop: Bottling up your fears will make them build up and destroy you from within. It's healthy to express them and let them out before that happens.
* FridgeBrilliance: The one Tingler that was the main antagonist in the movie was harvested from a mute woman - someone who couldn't scream. We find out relatively quickly that its preferred method of killing is strangulation. Why? Because you can't scream if you're choked to death. If you die without screaming, a brand-new, full-power Tingler is waiting to be pulled out of you. In short, [[FaceFullOfAlienWingWong it was trying to reproduce]].
* ParanoiaFuel: Everyone has a Tingler in them. The only way to be safe is to scream.
* TheWoobie: Poor Martha is deliberately scared to death. Specifically, they make a bunch of scary stuff happen, causing to Tingler to manifest, but, being mute, she literally ''can't'' scream and the Tingler kills her.
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