When 15 year old, Bridgette, wants to have a party while her parents are gone for the weekend; her twin sister, Chelsea, thinks its a bad idea. When Chelsea finally comes to the decision that nothing could go wrong, they decide to have the party that night. The party is going smooth until after their bestfriend, Veronica's boyfriend, Kyle, gets into a fight with his friend Jake. Things start to go awry when the power goes out and the security system won't unlock the doors. Once people start disappearing, their bodies turn up. Did Kyle or Jake have anything to do with this? Will Bridgette, Chelsea, and the rest of their friends make it out alive? Or will they all be dead when the clock strikes midnight? Find out....