Madrid, Spain, 1998. The many resources and skills of Gloria, Paz and Sagrario, three middle-aged women investigating paranormal events, are put to the test when their leader, Father Pilón, has an unpleasant encounter.

In the mid-fifties, El Nini lives in the poorest and most forgotten rural Castile (Spain). He is a child with no more knowledge than those provided by nature. El Nini lives with his father in a cave, and with him he devotes himself to the hunting of water rats, the only means of subsistence they know. But when they are tried to deprive them of their roof and their livelihood, violence will erupt uncontrollably.

On Friday, November 13th, 1992, three 14 years old girls mysteriously disappear when they head to a disco in a nearby town. 75 days later, their dead bodies were found in an advanced stage of decomposition, half buried in the undergrowth.