Shortly before he dies in an accident, Guillermo confesses to his friend Eusebio that he is involved in a sadomasochistic sexual relationship with a mysterious woman. Eusebio decides to look for this woman to tell her Guillermo has died. And when he finds her, he is bewitched by her. He doesn't dare tell her anything of the secrets he knows in fear of scaring her off. They slowly fall in love, and Eusebio hopes that she will hit him, humiliate him and mistreat him sexually like she did with Eusebio, but Julia merely caresses him tenderly. This is the beginning of an awful sense of doubt that starts bothering Eusebio: is this the same woman as his friend told him about? This novel is the story of an obsession and of a journey into hell. Luisgé Martín delves into the darkest labyrinths of the human soul.