With dead and lifeless eyes, Rachel Gardner wishes only to die. Waking up in the basement of a building, she has no idea how or why she's there. She stumbles across a bandaged murderer named Zack, who is trying to escape. After promising to kill her as soon as he is free, Rachel and Zack set out to ascend through the building floor by floor until they escape. However, as they progress upward, they meet more twisted p...