Marina practiced witchcraft and her mom died giving birth to her, Marina’s family is a part of a cult

Marina was ruthlessly bullied and tormented by the boys when she was seven years old.

Laura receives a friend request from a student at her campus, Marina Mills. she accepts the request and begins a friendship with the lonely girl. she soon notices that Marina's Facebook profile is has many disturbing images and her obsessive behavior begins to make Laura feel uncomfortable.

Marina swarmed Laura with various messages, while obsessively stalking her Facebook page

Marina got into a really bad fight with Laura on her birthday which led Laura to unfriend Marina. Marina offed herself and came back as a spirit

the spirit of younger Marina appears and says that she wanted to be best friends with her as she leads Laura to Marina's rotten corpse and her laptop which transports Laura into one of Marina's earlier posts. Laura is then lunged at by a demonic Marina.

Some time has passed and there are fresh batch of students. Laura is seen looking at some girls in the same way that Marina looked at Laura and her friends in the beginning

Laura then faces her laptop (which actually is Marina's laptop) and is shown to have zero friends, just like Marina before she met Laura. Then her new account, which shares the same dark, grotesque images and renamed as Lau Ra, is revealed. The camera shows Laura's eyes are green and blue, implying that Marina has possessed Laura