Three best friends and dedicated roleplayers take to the woods to reenact a dungeons and dragons-like LARP. Trouble arises when a prop spellbook purchased from the internet ends up being a genuine grimoire and they unwittingly conjure up a blood-lusting succubus from hell. Venturing into the woods to act out a medieval fantasy, three friends face a real-life struggle for survival after inadvertently conjuring a succubus.