It all begins with a man speaking about how everyone is blind to the powerful message of Gaudi's works. It begins when Toñi, a mere employee, saves an old man from being run over on the same spot where Antoni Gaudi was hit by a tram. It begins when Jaime Calvo, a cold and calculating detective, is ordered to investigate on how a realtor can be murdered in Casa Vicens, the first house created by Gaudi, without any clues whatsoever. When a serial killer named Trencadis leaves corpses at the most important Gaudi buildings and the police cannot stop him, a ordinary woman finds herself trapped in the middle of the case... guided by an old man that appears to be the ghost of Gaudi.
Alan is interrogated by the police due to his best friend's death two nights earlier. Ryoko receives a verbal warning for his behavior and his Japanese traditional beliefs that reveal us Ryoko's deep secret.
Alan ends his rather unhealthy relationship with Masami who doesn't take it very well. In Aokigahara, Ryoko recovers another suicide victim's body along with his skeptical work partner who does not believe the legends of this forest.