From publisher blurb:
Even in paradise, there is death.
This supplement (compatible with the Pathfinder Roleplaying Game) provides all the tools a gamemaster needs to introduce movie-style slashers to their campaign and even to run slasher stories in their own campaigns! Inside you will find:
An analysis of the narrative qualities of slasher stories and how you might bring them out in your campaigns
Advice on other contexts in which slashers might enhance your campaigns
Alternate monster abilities, enabling easy customization of standard monsters and NPCs for horror games and more
The Slasher and Grim Slasher templates, inspired by killers in film
The Massacre System, which can turn a lone killer into a threat for even a seasoned squad of adventurers
Five example slashers, each with their own motivations, plot hooks, and demonstrations of slasher tropes in action