Boring. The film exaggerates too much on the issue of technology. The antagonist is super cliché. I was not scared at all, nor did I even recognize scenes that they were meant to be. Weak soundtrack but with good actors. A weak script but good cinematography. At the beginning there were scenes that, honestly, gave me cardiac arrhythmia hahaha! But it breaks the mood with this premeditation. In short, the film is not so good, but it is not so bad.