I went in completely blind only knowing Dylan O'Brien rides a boat and it payed off, absolutely go in blind! This really reminded me of a great series on Netflix which I won't spoil like a dumbass (iykyk). Very slow start that'll probably bore most (just like that series on Netflix did for me at first) but it does a great job at setting up several mysteries and I was fully intrigued for most of it. It's an engaging puzzle to solve. The way everything falls into place is quite satisfying and it's a mindfuck, i'm still not sure I understood everything by the end. I predicted a few twists ahead of time but others completely surprised me. A familial concept with good execution. Really liked Dylan O'Brien's grief/guilt ridden character with a mysterious past he did a good job and so did Eliza Scanlen (who kinda looks like a younger Alison Pill?) they both carried the movie and had enough complexity and emotional impact for me to get invested. I dig the swamp setting it's scary, muddy disgusting, and refreshing as I don't see it used often in that capacity.

"Karnack East grey" is my new favorite ridiculous color name.