![](https://image.tmdb.org/t/p/original/4kux337CkgvFTJvU22Po3js9iHe.jpg)
![](https://image.tmdb.org/t/p/w200/6BxUgmTTC5E9F6Y6ZgyexbUDpBh.jpg)
Four high school friends meet up in an abandoned house to play 'Backstabbed', a game of murder with headphones and plastic weapons. Meanwhile, a serial killer is leaving a trail of blood on his way to the house, and soon the game of murder becomes much more than make-believe.