Documentary exploring the complex world of digital content moderation - where undesirable material is `cleaned' from the internet by a hidden army of nameless people. In downtown Manila, a team of content moderators must delete a target of 25,000 Facebook, Google and Twitter posts each day. Trawling through the world's most violent, disturbing and highly contentious online material in the form of terrorist videos, child pornography, self-harm material and political propaganda - the cleaners are individually responsible for deciding what stays online and what gets removed.