Great concept; terribly done. Told in hand-held documentary-style format, this is the story of insecure people creating fake friends and fake conversations on Facebook to fill their empty lives, luring other insecure people with empty lives into becoming their friends, leading to a vicious cycle; an "orgy of insecurity". Problem: the movie could have wrapped up in 1 hour, as the final 20 minutes is extra. Unforgivable problem: The movie asks us to feel sympathy for these lonely beings during those final 20 minutes. Cinema is not the place for morality lessons.
PS: Check your Facebook profile. If you're having a hard time remembering your 400 friends, you've got a problem, and this movie is for you.