Mal de Ojo starts with an interesting premise if you are fans of folk horror. Sisters Nala and Luna are sent to her grandmother while their mother searches for alternative healing methods for Luna's strange sickness. But Nala suspects their grandmother might be an evil witch.
Now, for once, I need to be pick about the title: Evil Eye. I really did not notice any correlation between the title and the movie's story. I wonder what was the Director thinking.
Nala is a neglected teen. Her parents only have eyes for her dying sister - understandable, but Nala's flaw is exactly this: she wants attention, she is tired of being left aside. As the story progresses, we see minor themes like parenthood neglect and submission in place, but these themes don't have a toll on the story's arc. The arc is about the folklore surrounding witchcraft and the likelihood that their grandmother is a witch.
The character Nala is a bit off with current kids, I don't know. I even asked my 11-year-old: "would you be that naïve?" She denied. I tend to believe kids nowadays are not that stupid or gullible; Nala does look like a smart kid, but she keeps struggling to act for no apparent reason other then being submissive to Josefa's demands. I doubt someone so "I do my own" as she seemed to be wouldn't try something different faster. I guess only Stephen King knows how to truly depict children.
Some facts in the movie are obvious, but what keeps the movie strong is Paola Miguel's and Ofelia Medina's acting. Their on-going clash builds momentum as the story becomes darker, building their characters and leading us to the climax.
A climax that derails the movie a bit.
Up to this point, Mal de Ojo, whatever that means, is keeping us hooked enough for the ending revelation. The story does add a bit of exposition "just because", which detracts the entertaining factor. For example, the scope of the witchcraft's influences seems to affect more than just the grandmother's house, but the story explains nothing about this situation.
To wrap up the story, a twist leaves the overall arc too dark. The final scene keeps the story with folk roots, which dissatisfies the audience, as we'd expect a stronger arc ending for Nala.
Mal de Ojo doesn't stand out as one-of-a-kind, neither reinvents the wheel. This movie keeps to its folk-horror genre, delivering a promising story that builds itself strong, but the ending might throw some people off.