On a night of torrential rain, Amy arrives at her boyfriend Jack’s mansion for a party—just as a black bear escapes and floodwaters cut off every road. Trapped inside the isolated mansion, the guests face one terrifying danger after another. As Amy fights to survive, she discovers a shocking truth: her best friend Jessica has been dead for years. The truth is even darker. Jessica took her own life after being sexually assaulted by Jack, David, and Rod. Now her brother Leo has disguised himself as the escaped bear, trapping them in a deadly revenge game.