Underworld is a 2003 action-horror film about the secret history of vampire and werewolves, where the latter are referred to as "Lycan" as an abbreviated form of lycanthrope. It is the first film in the Underworld series. The main plot revolves around Selene , a vampire "Death Dealer", or one who hunts Lycans, a job she is extremely good at due to her hatred for the whole species, whom she believes to have killed her entire family. She finds herself attracted to a medical intern, Michael Corvin, after saving him from the Lycan master Lucian , and must decide whether to do her "duty" and kill him or to risk her life to save him.Underworld: Evolution is the second film in the Underworld series, following Underworld in 2003. Evolution continues the conflict between vampires and Lycans, also highlighting the beginnings of the feud.Underworld Evolution is an immediate follow-up to Underworld (2003). Therefore, the events of Evolution begin during the same night of the first film's finale, and the next few days after. It is much more action-oriented and violent than its predecessor.