Screenrant's 10 Great Horror Movies Where the Heroes Lose

"Some truly great horror movies end with evil emerging victorious as the heroes are left dead, despondent, or otherwise unable to defeat the villains. The genre is designed to scare viewers, but if things get too bleak & hard to watch, a significant portion of the audience will inevitably be put off finishing the story. Many great horror movies offer viewers a concession by providing a comparatively hopeful ending. The Final Girl usually triumphs over the slasher, but some horror movies subvert this, refusing to provide any resolution. There are movies where the killer is never revealed, leaving viewers uncertain & movies where the hero turns out to have been the villain all along. However, none of these are quite as brutal as the horror movies where the hero straight-up loses: a bleak twist as a cheap surprise, but there are a handful of genuinely great horror movies that lean into the genre's darkest side with endings that obliterate any hope & let evil triumph." - screenrant.com