The central character in this story wakes up with amnesia, in a body that is not his own. Whenever he goes back to sleep, his soul wanders from body to body, trying to discover its own identity, trying not to fall in love with a girl to whom his different bodies take him, trying to watch a film that, surprisingly, contains the clues as to what happened to him, and trying to prevent the perpetration of a crime he has already witnessed and about which he knows practically everything: the place (La Latina neighbourhood in Madrid), the day (27 May 2007), the time, the assassin and the murder weapon. Everything except the identity of the victim. The author blends humor, fantasy and many features of the crime novel to examine the bewilderment of man in the twenty-first-century in terms of his own body, the incompressibility of being and his inability to recognize his own identity.