A starkly real Madrid where the unexpected, and even the magical, can suddenly just happen. This is the space inhabited by the characters of this novel about Nikki and Sánchez, a couple of losers in search of an opportunity. Once they shared a life, but then their paths diverged. She has been smuggling tobacco in La Línea and now, back in Madrid, has become involved in the world of gambling and greyhound racing. He has a reputation for being unlucky and prone to disappearing, is in debt and agrees to help Nikki when she asks him. Her proposal: that he helps her bring a greyhound named Cromwell to the attention of an Italian woman who manages the races. During the endless small hours of the morning, the couple will navigate a ghostly Madrid in search of this greyhound and will encounter all kinds of strange individuals.