Sorority Row -Blu-ray-

It's all fun and games until someone gets stabbed with a tire iron. When a pledge week prank goes terribly wrong and one of their own is killed, the popular, hard-partying sisters of Theta Pi vow never to speak of the tragedy again. But the past comes back to haunt them in the form of a homicidal maniac seeking revenge during the out-of-control graduation festivities.