In the claustrophobic passageways of a deep sea platform, a crew of six metalworkers and divers breath a mix of oxygen and helium (giving them perpetually squeaky voices) and perform complex duties dictated by an off-site commander. The world of Platform Moon, with its stony-faced irony, delectable sci-fi references and the serene dread of being 180 metres underwater, will leave you in awe, but will never leave you.