Based on the screenplay by Danny McBride. DEADLY RIVALS FOR CENTURIES, DESTINY WILL BRING THEM TOGETHER. Vampires and werewolves. Sworn enemies for over nine hundred years, they have fought a secret war in the darkest shadows of the mortal world, pitting undead strength and cunning against feral rage and savagery. Now, in the hip Gothic streets of modern-day Budapest, the ancient conflict takes an unexpected new twist. Selene is a Death Dealer, a vampire warrior dedicated to the destruction of the hated lycans. Michael is a werewolf, an innocent American newly infected with the lupine curse. Against all reason and history, they find themselves drawn together even as the grisly inhuman war rushes toward its nightmarish climax. They have no idea of the power their unlikely union can unleash—and of the terrifying secrets that will be revealed in the unearthly realm of... UNDERWORLD