Twilight was written by author Stephenie Meyer in 2005, she followed up with New Moon, Eclipse and Breaking Dawn, the books tell the story of Isabella ( Bella ) Swan and Edward Cullen and the movies were adapted from these books.

In Greek mythology, Lycaon was transformed into a wolf as a result of eating human flesh, this brings up an interesting theory that tales of werewolves were used to explain serial killers because it was thought inhuman that one person could kill so many or commit such atrocious acts.