Agueda Chacon Churruca made a great fortune writing her horror books. Her readers adored her, although she hated them: “I write to make them suffer,” she would say. In fact, Agueda detested everyone, especially her family, whom she always labeled as sloppy, lazy, clingy, and having ugly hair. One tragic day, Agueda dies electrocuted in her massage chair and leaves her immense fortune to the relative who can manage to spend twelve nights in her collection of haunted houses. Ghosts, possessed dolls, enchanted castles, and endless frightening situations await the Chacon family.