"Those who drink the blood of Grimm are cursed to walk among them." For Nix Spherule, this was nothing more than a story to frighten children. But when his village is destroyed by an unknown Grimm, he learns why they should be feared firsthand. Vowing to never let Grimm cause such chaos again, Nix travels to Beacon, where with the help of his new friends, they discover a threat not just to Vale, but to all of humanity.