Good Spanish/Mexican thriller/horror.
Woman slowly becomes blind while investigating the suicide (not really) of her sister, who was also blind.
The first 2/3rd is wonderful. She acts well, particularly some of her smaller movements are very expressive.
When the killer literally comes into view, the story slows down, and too much so. His psychological past felt a bit deus ex machina, and so serious editing would have benefitted the story overall.
