Really good watch, would watch again, and can recommend. Brittany Snow is great in this, she really does a top notch embodying the terror of her character while still being a strong female lead. There are also other actors in this. Honestly, Idris Elba and Johnathon Schaech carry a fair portion of the movie. It does do something fun...

Girl who was attacked and survived the attack. Has always thought she would be attacked again. At her prom death starts to happen. Pretty decent movie.