The premise here is a genre classic: one day, workers on the oil rig Beira D hit something with their drill that they shouldn’t have, and soon, a nameless horror descends on the ship and picks off the crew one by one. When it happens, Glaswegian electrician Cameron “Caz” McCleary is already on his way off the rig, fired from the remote job he fled to in order to dodge the police after a serious scrap at a bar. It’s his work boots we step into as he desperately searches for an escape.