Siobhán (Hermione Corfield) is a brilliant young marine biology student, more at home amidst laboratory equipment than people. As a component of her studies, she boards a trawler overseen by a couple (Dougray Scott and Connie Nielsen) whose amiable demeanour shields both financial worries and profound grief. Siobhán is not exactly welcomed aboard: her cool, scientific perspective is at odds with that of the salty, superstitious crew of “fishmen” led by Dougray Scott. Not long after setting sail, the old ship’s hull is latched onto by a bizarre, bioluminescent creature of unknown origin. Sea Fever draws us in with richly constructed characters before rattling our senses with all manner of eerie sights and sounds, recalling such genre hybrid classics as Alien and The Thing.