Madrid, summer of 2010. Commissioner María Ruiz investigates the sinister crime of a young man. With no visible identity and no clues or apparent motive, María will begin an investigation that will become more and more complicated.

Features five stand-alone stories, connected only in that they take place after a solar flair causes a worldwide blackout and deals with the consequences that such a catastrophe might impose.

A group of friends reunited to play a game. Each one of them expects to get something about it. The rules of the game are to tell a story of horror for each candle.