Light is a girl of 20 living Italy with problems to socialize, It is the eye that are believed to be best at their University, every day light is worse than the previous full of humiliations by Brenda and her friends Valeria, Victoria, Gabriela and Alejandra love with a boy who does not pay attention to anything and Brenda's boyfriend. It is said that light treat it that way by being timid, quiet and an excellent student, However Luz has a friend named Rachel are friends since childhood and is the only one that speaks.
Brenda meanwhile is typical blonde airhead that what matters most is your physical, be fashionable and look good for all. Daniel is Brenda's boyfriend and platonic love of Light is a quiet boy, a little thought but nothing that can affect the eyes of love Luz.
One day in anatomy class, Light received one of the worst humiliations by her friends Brenda, in the experiment which sought to see the epithelial tissues of a pig, Brenda and her friends in the absence of the teacher took the pig, he took the blood, and they smeared it on his face Luz between 4 and they took all filled with blood in front of the whole room laughing at Luz. A teacher arriving and realizing that punishment disaster girls, and forced to spend a night with light Sleepover where she would be the queen and they had to do everything he said would lose light or college semester. The girls left with no choice but to access the punishment of the teacher.
The expected arrival night, Sleepover began in light house, his parents were on vacation, at the beginning it became quite normal, and Light do not ask anything to the girls, when out of nowhere there is a power outage and the returning light and Gabriela is not, Frightened all began to look around the house and got in the cabinet room of the hanged, all they horrified sought out but all the doors and windows were closed. There was no escape all were in danger including Light that was just as scared.
They spent 15 minutes when suddenly another blackout, Frightened all run in different directions for their lives, to the back light or Valeria and Victoria were, and Gabriela's body had been removed and there were two of them in the room butchered, Desperate girls seeking to knock down the door but could not, It is frightening everything that happens in this house.
Fear takes over the house, all the girls thought that these murders were planned by light and when you are claiming another blackout takes over the house,
Alejandra runs desperate to achieve door kicked open, but going out leaving it receives fatally shot in the yard of the house.
Brenda left alone in the house, the light come to note that light is not, which it makes her think she was not the killer, Frightened goes to the room and they were not the bodies of her friends, Light and shouts listening in the room above, she goes to meet with the murderer but getting to the room, Get birth alone, writhing in laughter telling her how much he had waited for this moment, all the humiliations would be paid tonight, what Brenda cries and asks for mercy Light and Light responds: I'm not light, I'm the one showed in it, which were fed with each of your humiliations and now feels more alive today than ever-deliver you from your sins and rot in hell it takes a gun and shoots him in the head Brenda, then completed suicide.