The world has plunged into the greatest chaos in its history. Some mysterious creatures have taken control of the Earth and have forced humanity to be unable to use sight to survive. In the midst of this madness, Sebastián and his little daughter, Anna, try to get by from day to day in the desolate streets of Barcelona. In order to survive, they will forge alliances with other survivors and be able to face these reckless creatures, however, a new threat lurks in the dark.