Did you all see that Modern Family episode a while back where the entire episode was done through FaceTime and various devices? This is pretty much the movie version of that, only with dire consequences.
This would have worked really well as a episode of the Twilight Zone or something similar. It's mercifully short at just 82 minutes, and even then it probably should have been about 10 minutes shorter as it starts to drag a bit towards the end. Tighten up the editing, make time for commercials, and there you go.
As far as the characters go, they were all fairly annoying and unlikeable, which for teens is basically the default. The cast itself was fine, and wouldn't be surprised to see a few of these guys pop up in other stuff down the line. As the story unfolds, you realize these aren't the greatest people, so when they start losing their shit over what's happening, it's kind of funny to see and strangely satisfying.
Unfriended isn't something you need to rush out and see in the theater, but I think fun enough to get some friends together and watch MST3K/Rifftrax-style.
2.5 (out of 5) Death Stars