Headscratchers / Hush

• When Maddie is cleaning up in the kitchen while Sarah is banging on the door and moving around outside, wouldn't Maddie have seen her in her peripheral vision or felt the vibrations? Deaf people typically have higher visual acuity and can often feel vibrations through the floor, so I find it implausible that she wouldn't have either caught a glimpse of Sarah or felt the door slamming repeatedly in its frame.
  • This troper felt the need to actually test this, having a kitchen with a similar layout to Maddie's. We found that, while I could hear said family member banging and tapping on the door, I didn't feel anything (as the door was 1) separate from the floor, 2) too far away to "feel" anything like that) nor did I SEE anything. We assume that Maddie just didn't feel the vibration because it really wasn't that loud and her hair just blocked her peripheral vision, which happens more frequently than you would think.
    • But you haven't been deaf for 20 years and learned to be cognizant of sound vibrations to the point that the vibration of a shrill alarm can rouse you from a dead sleep. If the vibrations of said alarm in a different room can wake her up, then it stands to reason that she should be able to feel the vibrations of somebody banging on a door four feet away.
    • The alarm wasn't just shrill it was deafeningly loud to a ridiculous degree. Far louder than Sarah banging on the door would have been. Maddie's been deaf for 20 years but its not like she has Daredevil level powers from it.
    • Also, it was darker outside than it was in the kitchen, which means less chance of being able to be seen.

• Why did the killer murder Sarah up against the window where Maddie could easily see or hear him (keep in mind he didn't know she was deaf yet)? Did he just plan on killing her the moment he saw her? And why didn't he just leave instead after verifying she was deaf? It's not like she would have found Sarah's body or known anything about the murder. Heck, being the last person who saw Sarah alive, she probably would have been framed for Sarah's murder. So why did he stay to kill her?
  • The notches on the killer's crossbow implied that he was tallying the deaths of his victims, so we can safely assume that this was something he had done before. Throughout the beginning of the movie, the killer attempts to frighten Maddie. Stabbing Sarah on Maddie's back porch was just another scare tactic. The man was sociopathic, and wanted to toy with his victims before killing them.
  • To be fair, I doubt that's where he planned to kill her, but she managed to get away and run to Maddie's door. At that point, his only other option was to let her get away, since it wasn't like he knew at this point that the only person inside this house was a deaf-mute.