I haven't read a good slasher in awhile and this really scratched that itch. But more than that, you get a fun flash sideways trope! I guessed the killer correctly, though I'd be a liar if I said I didn't waver a few times. But having 12 hours to solve a murder on Halloween night - which quickly turns into a spree - is inherently tense. Adding in the pressure to save your sister from her untimely death and it is just NERVE-RACKING! It reads so quickly and left me wanting some of those jack-o-lantern donuts and a cozy peacoat. It's a perfect fall slasher best read in the dark.

*Thank you to Razorbill and NetGalley for an ARC in exchange for my honest review*