Canadian thriller filmed entirely with hand-held and surveillance cameras. Married couple James and Amy (Nick Stahl and Mia Kirshner) are being watched by an unknown person. The stalker's agenda at first seems to comprise no more than a string of petty pranks, but as time goes on things get more sinister: he starts breaking and entering the couple's house and installing surveillance cameras in strategic places. Who is this intruder, and how much of the deadly cat and mouse game that ensues is born of James's increasing paranoia?