* LoveToHate: Det. Loren Visser is such a memorable villain.
* NightmareFuel: Imagine yourself [[spoiler:regaining consciousness after being shot, only to find yourself being buried alive (by someone who you thought was dead, no less)]].
** In several other ways, too, well described by Creator/RogerEbert:
-->It keys into three common nightmares: (1) You clean and clean but there's still blood all over the place; (2) You know you have committed a murder, but you are not sure quite how or why; (3) You know you have forgotten a small detail that will eventually get you into a lot of trouble.
** The scene in which Visser has to pull the knife from his hand also counts, if only because it seems to take forever to remove it.