Unfriended

California teenager Laura Barns (Heather Sossaman) commits suicide when she's called "a slut" and a "waste of life" after one of her classmates posts an embarrassing video of her online to shame her. Her suicide is also captured on video and posted online.

A year later, an anonymous person uses Laura's Skype account to contact six of her friends to demand that whichever one of them posted the shaming video online come forward and admit it. When no one confesses, the anonymous person types "Tell me who posted the video...or someone dies." When they all claim to be innocent, frightening things begin to occur.