I would rated it 10 if it had Answers!!

Rating: 8/10 (18 February 2019)

It was a very nice movie very entertaining such a new weird story of unknown thing that let people suicide as soon as they watch it but there's no explanations in the movie of what was that thing? Or where it came from out of sudden? why it cannot come inside the buildings ? Why it does not effect the demented people? I have no clue of anything there was not a hint even