It's definitely should be above if not 6/10. A mystery suspense story about 12 teens who agreed to do a group suicide from a web. Some people could easily expect the ending, but I think the focus of the movie is to remind us of our humanity in this one suspense event. Everyone has their own reason to die, no matter how big or small. And not simply die, some people don't want to be murdered and want to die by pure suicide, some people don't want to die while being remembered as a murderer, all the complicated reasons they have as humans. And as humans, everyone subconsciously wants to help other people to keep living, in other words, the ability to sympathize.
The ending felt a bit flat, we don't even know if they decided to become friends at the end, or planning a reunion later, but at least they all looked relieved and that's all that matter; they just have to know that all they need is another people to share and listen to their stories and pain. I won't lie, this movie stabbed right through me.
And what I really love is the clips on the ending that showed all that happened behind the mystery, so if you don't really understand what happened exactly when they were discussing, you can understand now, accompanied by an upbeat song that makes you feel alive.
I just remembered the song is On Our Way by The Royal Concept, the song that was used for FIFA World Cup 2014 game. That's why the song kinda shouts spirit of youth and bit nostalgia for me! That's it, a solid 7/10 in my book.