With a dollop of cheerful bad taste and maybe the memory of Edgar Wright's Shaun of the Dead somewhere in the backs of their minds, director Jon Wright and screenwriter Kevin Lehane have created a likable and technically impressive comedy-horror. Richard Coyle stars as Ciarán O'Shea, a permanently drunk cop on a remote island off the coast of Ireland; Ruth Bradley is the attractive new temporary officer, Lisa Nolan, an uptight workaholic drafted in from Dublin. To their dismay, and that of the laidback locals, the island is threatened by a mutant strain of weird creatures with fangs and tentacles, known as "grabbers". These hideous beasts are deterred by just one thing in a potential victim: a high blood-alcohol rate. So Ciarán and Lisa decide that they can only attack the monster after fortifying themselves with an almighty lock-in. It is fantastically silly, often funny, with some unshowy but very serviceable digital effects. Russell Tovey offers game support as the nerdy forensic scientist with a crush on Lisa; Lalor Roddy is the incorrigible Paddy Barrett, who first captures a grabber and keeps it in his bathtub, and Bronagh Gallagher is the formidable pub landlady under the poignant impression that the lock-in is to celebrate her birthday.