First of all, the concept is new to this industry and that's the only plus thing in this film and that was the only thing that made me watch it until the end.
Rest everything was below average in this film, be it Manju Warrier, Sunny Wayne, Alencier, or Shyamaprasad. I believe they are talented, but too many scenes in the film where these faces were empty, be it fear or anxiety or sadness.
Script and dialogues were simply boring and sickening. Unnecessary English dialogues also in between to add more worry.
Only thing that stands out, the concept.
It's good to watch once and then forget everything except the concept.