A writer of crosswords of a newspaper of Sevilla is "recruited" to play in a lethal game in which he will have to do all his best if he wants to survive. It starts when he is suggested by someone to put the word "adversario" in his next crossword, he could not suspect what was going to happen in the city, in the middle of Holy Week, when he decides to start the game. With great actors, great screenplay and good directing; this is one of this films that keep you stuck into the sofa, in order to discover what is going to happen next. It is compulsory remark the spectacular scene of the battle with toy laser guns in the old part of Sevilla. A really good film.