Marine biology student and introvert Siobh?n (Hermione Corfield) must embark on a research trip aboard a rugged fishing trawler, contending with the close camaraderie of the crew. While deep in the Atlantic, an unusual creature takes the ship in its clutches and maroons the sailors. One by one, the crew suffers from a mysterious illness, and it is up to Siobh?n to earn the crew's trust if she is to save them. Written and directed by Neasa Hardiman; Connie Nielsen and Dougray Scott co-star.