Based on the novels by Colombian writer Mario Mendoza and on the character of detective Frank Molina, the filming of Los Initiados took place in Bogotá. In the saga of Frank Molina, which uses the books Lady Massacre, La melancolia de los feos, El diario del fin del mundo and Akelarre, the story of an alcoholic private investigator who unmasks sinister plots within the underworld of Bogotá is told.

After a traumatic situation that makes Vega become an agoraphobic person, she decides to live like a hermit in an apartment because of her father's recommendation. But some strange things start happening, she sees visions, and hears noises and voices. She starts to worry about the dark past of that apartment, and the bizarre obsession of her neighbor.