- The daughter's death was so unbelievably effective in its execution, one of the best sequences I've seen in a long time. Just the death in itself is interesting as it subverts almost everyone's expectations of her being the focal point of the movie, but focusing just on the Peter character's reaction to it was such a fantastic way to do it.
- It's always nice to have an opening shot that draws you in immediately, although I wish they didn't show that off in the trailer. The trailer did A LOT right, but I think it would have been better if they saved that transition for the movie itself. Regardless, it's a shot that shows off what to expect from a technical angle, sets an eerie tone for the rest of the movie, and serves a nice metaphorical function that isn't too obvious right off the bat.
- I loved that it never felt like there was a "safe haven" in this movie. I look at something like A Quiet Place, and it's just so painfully obvious when the scary moments are going to be, along with when the "down moments" are going to be where it's just about character development, etc.
This movie had me thinking things like, "Oh shit, he's in a brightly lit classroom surrounded by people" or "Oh shit, he's eating lunch on a picnic table on a sunny day with people playing all around him". I think to do that without having any reliance on jump scares is just fantastic. This isn't a Conjuring thing where they just lure you into a false sense of security by having a bunch of people talking in a brightly lit room and you think it's just a basic exposition scene, only to throw in a scary face and loud noise to startle you. It's about building tension and a sense of dread that you shouldn't expect the characters to be safe just because things don't look inherently ominous.
You still get the walking down a dark and creepy hallway scenes, but they subvert your expectations enough in those where they keep it interesting. Even something like the kid waking up and looking over at the chair, which would seem to be your classic "red herring" scare, is executed in a way that isn't just playing you for a cheap scare. There's no crazy camera manipulation or loud noises to throw you off, it kind of just shows you the chair and lets you throw yourself off by imagining something that isn't really there.
- Annie saying really cruel shit to her son. There was just something about the way she said things and the dialogue that hit REALLY hard. She's not just spewing vile things at him; they give her some humanity there where she's saying things like "I know it's difficult for you as well" during the dinner scene, or covering up her mouth after she said she "never wanted him" in the shared dream sequence. There's obviously some reliance on the vulgarity and yelling, but the writing was really on point.
- The whole Peter waking up part all the way up to the point where he closes the attic door felt like the most mainstream horror part of the movie to me, but I still love the way it was executed.
It's not like we haven't seen "crazy demon lady crawling on walls" a million times before, but I think when you put it into context of it being such a slow burn of a movie, and not really seeing anything like that for the rest of the movie, it makes it a lot more effective. Just the way she came in at first did such a good job at setting the tone for that scene. It added such a surreal element to it. You're not really thinking "Ah! Scary lady climbing on walls!" You're more thinking, "What in the actual f*** was that? Was she crawling through the air?" It's just weird in a good way, and gives it that extra flair of being even more unsettling.
I really liked her being in the background on the roof when it wasn't completely obvious (although still fairly obvious), but I wish they didn't do that change in focus and make it completely obvious to the point where it was the focal point of the shot. Her just being in the background out of focus was more than enough.
And then you get maybe the only true jump scare in the movie with her running out of the corner. You get all those clicking noises and some fairly quick shots that are semi-startling at other points, but this is the only one I can remember that had the prototypical long drawn out silence/creepy atmosphere and then hits you with a sudden jolt. I'll have to rewatch it to see if they added a sound effect, because I'm not sure if they did. I'm completely fine with that though. It was kind of like Black Philip charging the guy out of nowhere in The Witch. You get a movie with next to no reliance on startling you with jump scares, and then it hits you with a big one near the end.
The head banging at the end of that sequence was awesome as well, although another thing that could have been held back in the trailer.
- And then the best horror imagery in the entire movie, which is the floating/hanging saw part. If you're going to pick one thing from this movie and remember it as iconic, I think it has to be this. Sound design, imagery, everything was on point. Loved her blankly staring at him, how it sped up, and then also loved that they didn't feel the need to show the head actually coming off.