CSI meets Jack the Ripper in early 20th century Barcelona: captivating, scary & genre-breaking. In 1917, Barcelona`s infamous Raval district is alive with outlandish rumours. A monster is abducting & murdering young children. The police are either powerless to prevent his terrible crimes, or indifferent to them, since they concern only the sons & daughters of prostitutes. But Inspector Moises Corvo is determined to stop the outrages, & punish their perpetrator. His inquiries take him on a tour of the Catalan capital, through slum, high-class brothel & casino, & end in a stomach-turning revelation.