AllMovie

Madrid-based writer Tomás Mariño travels back to his childhood village for a celebration in his honor, but quickly discovers the invitation holds sinister implications after rumors of werewolves prove to be far from fiction. From the moment Tomás arrives back in Arga, he senses that something sinister is brewing behind the scenes. And he's right; the locals of Arga are bound by a curse that can only be broken when a member of the Mariño family is sacrificed. Terrified, Tomás attempts to escape with the help of his closest friends. But somewhere along the way they accidentally unleash a werewolf, plunging the entire town into a terrifying battle against a vicious pack of lycanthropes.