Gatekeeper is a near-future sci-fi thriller set in Australia, an Australia where multi-national corporations seek to hi-jack social interaction with invasive advertising – advertising so powerful that it can even interrupt speech, forcing citizens to spout their lies.

One group stands between the people and advertisers – Charon, designers of an implant chip used to filter out the advertising.

Yet for Oscar, designer at Charon, that status quo is about to change. When he brings his brilliant idea of 'home towers' to filter out the advertising, he accidentally uncovers a deadly conspiracy that threatens not only his life, but the autonomy of the whole of society.