Underworld tells the story of Selene (Kate Beckinsale) a Death Dealer bent on destroying the lycans who allegedly killed her family. She discovers that the lycans are pursuing a human, Michael Corvin, for experimentation; Selene captures Michael herself to find out what the lycans are up to. Along the way, Selene not only discovers a mutinous plot to destroy the vampire Elders, but also a shocking revelation about her father figure Elder, Viktor.