* What makes the film effective is its total plausibility in today's world.
* [[spoiler: Adam's]] high-pitched screams as he's set on fire off-screen. Worse yet, we get a brief shot not long after from far away of him still walking around with his head on fire.
* Similar to above, [[spoiler: Jenny's]] screams as she's dragged into the shower by [[spoiler: Brett's father]] to be killed, and [[TheSociopath Brett's]] emotionless stare into the mirror afterwards.