A group of friends discover an ancient book, the Necronomicon, the Book of the Deads. They discover that the book is a link between our world and the world of ancients creatures, older than our civilizations.
Simón is an aspiring novelist who makes a living designing crossword puzzles for a newspaper. One day he receives a threatening message instructing him to include the word "adversary" in a puzzle as Seville gets hit by a series of violent attacks.
