After a brutal attack Jade can't shake off the feeling that someone is watching her, monitoring her every move. Even after her half-sister, Claire, and Claire's sassy teenage daughter, Jade, move into her apartment to care for her, their presence does little to ease her overwhelming anxiety. She begins spying on her neighbours through high-powered binoculars, becoming obsessed with the new tenants in the building across from hers. But the strange things she sees only deepen her fears.