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Hmm...not exactly. In the sort of thing I'm thinking of, other normal (well, sort of) stuff would still be happening. For example, the scene in Silence Of The Lambs when Clarise and Hannibal first meet. They only talk in that scene, nothing scary happens. But nonetheless, it is still a very scary scene.
In the specific example, I'd call it a Dissonant Serenity which can have a scary effect. When stuff is scary unintentionally, it's Nightmare Fuel.
C.S. Lewis made a distinction between fear and dread, where one was a fear of physical danger, while the other was a dread of the uncanny.
Hannibal poses Clarise no immediate physical danger. Although Lewis was focused on the dread of supernatural entities, you could call Hannibal uncanny.
This is called "the viewer is a little baby man."
A scene is scary, despite the fact that nothing scary happens in it.
Edited by LanceOmikron