What happens?

Spooky ghost Facebook guff.

Attractive popular girl befriends creepy loner girl with no friends, Facebook or otherwise. Creepy girl gets way too intense, attractive popular girl unfriends her. Creepy girl kills herself in front laptop. Creepy girl becomes some sort of bee/wasp based witch/spirit who possesses attractive popular girl's friends and makes them kill themselves so that she'll know what its like to be alone, uploading the death videos to attractive popular girl's Facebook and not letting her delete them. Attractive popular girl and guy friend who is totally into her and jealous of hunky Doctor boyfriend figure out how to stop the creepy spirit girl. Jealous friend turns on attractive popular girl and stabs her in the stomach saying that she can't be lonely if she's dead. She survives and runs. Peter Pevensie arrives and gets stabbed in the neck by jealous friend. Attractive popular girl finds where creepy girl burned her body. Some stuff happens, and attractive popular girl becomes new creepy loner girl. Because magic I guess?