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.
Paul has left his wife and children. Now his wife and ex-mistress is on the hunt for him.
Young couple Samuel and Eva move to Madrid and start living together when he finds work as a photographer. Although Samuel doesn't knows, Eva's expecting a baby.