In an undefined society, the computer analyst Simon J. (Jeremy Sisto) has a paranoid behavior, compulsively buying milk and receiving mysterious empty packages in his apartment. Although having surveillance everywhere inside the building, there are some dwellers mysteriously dying. His next-door neighbors are Trish (Deborah Kara Unger), a nurse in a cancer hospital that practices kinky sex to feel alive; Derrick (Udo Kier), an inventor living alone with the company of an eerie robot head; and a producer of SM videos and games (Bruce Payne). The janitor of the building, Howard (Lance Henriksen) seems to be a friend of Simon. There is also the administrator of the building and Nile (Eugene Byrd), who brings deliveries with his motorcycle to his clients. Simon tries to figure out what is happening with him.