Sam Walczak (Mischa Barton), is a recent engineering graduate. At her graduation party, her father, an owner of a demolition company, gives her a gift: a job supervising the demolition of a building in the middle of nowhere. If she's successful, she will become his partner. Sam arrives at the Malestrazza Building, and is greeted by Mary (Deborah Kara Unger), the caretaker. Sam tells Mary she will be staying in one of the apartments in the building. Jimmy (Cameron Bright), the caretaker's teenage son, takes her bags to her apartment and explains the rules of the building. She is to stay off the eighth floor because it is Malestrazza's and the roof because it is too dangerous.