It's not at all scary. You just watch a bunch of very boring people doing random daily events then they don't share it and die. If they know it's killing people, why has no one bothered to try the first option? This has to be the worst movie I have watched in a long time. I actually had to slap myself to keep watching, just in case they explained it at the end or something interesting happened... it didn't... just made me really regret the time wasted and I really want to warn people, so they don't have the same experience. It is bad, awful, terrible, idiotic and a showing that some movie ideas should never attempt to be made... ever!