There's a degree of removal in Perpetrator which some viewers may find jarring: most visibly, in the performances, whose heightened sensitivity can seem unlikely for a horror film. That said, director Jennifer Reeder's main conceit here is to entertain and make you think, and she doesn't want you to get too comfortable. In the central concept of "Forevering," a family curse spell that Jonny goes through, Reeder vests her character with metamorphic potential, and with that, ignites hope for a future that is better for women and for horror cinema as a whole. But the film is not overly intellectual. It's rather intuitive in its world-building and celebrates horror's final girl trope in a well-deserved way. A little gore, some slasher tropes, LGBTQ+ themes, and strong central characters make it a perfect pre-Halloween treat.