* JustHereForGodzilla: The [[spoiler:Jaw Ripper]] scene.
* {{Narm}}
-->'''Ben:''' ''Don't make me threaten you!''
* ParanoiaFuel
* {{Squick}}: [[spoiler:Angela Carson]]'s death. [[spoiler:She is killed by her reflection as it grips its jaw and slowly pulls its mouth apart, causing her to bleed profusely.]]
** And [[spoiler:Gary Lewis]]'. [[spoiler:The mirror kills him by slashing its throat, causing him to die]]. Made so much worse by the fact that we don't get a murderer's hand to obstruct our view, like we would if it was another person doing it.
* WhatAnIdiot: [[spoiler: Michael removing the paint on the mirrors and turning the water on throughout the house, causing the near-death of his mother and his father to get trapped in a Mirror Dimension forever]].
** The implication was that his [[EvilTwin Evil Mirror Twin]] was [[PeoplePuppets making him do these things]] so as to let the demon into their home; pay close attention to the scene where it turns out Ben missed one tiny reflective spot on a doorknob, and what happens to Michael right afterward.
* WhatDoYouMeanItsNotSymbolic: Both [[TheAtoner Ben]] and the [[EldritchLocation Department Store]] are ''[[JustForPun burnt out]]'' husks of what they used to be and display a dual nature that rapidly shifts between light and dark. Also, Ben's attempts to free the spirits trapped in the mirrors parallels [[MyGreatestFailure his greatest failure]] since they give him the chance to [[TheAtoner make up for]] the shooting victim he couldn't save. And after freeing the spirits who otherwise would have been trapped forever [[spoiler:he is trapped forever himself]].
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