It was the evening of August 3rd, 2004. Tony Mendez took his six-year-old son on a fishing trip in hopes of coping with the loss of his wife. What they found in the Texas Sabine River that evening was a human skull. A cold case was re-opened but little did Tony realize it would ignite a series of disappearances of small children that would upset the town, turn him and his son into the target of a sociopath and make the world question if perhaps the small town legend of La Llorna was true ...