Park manager Fiona is tasked with taking care of some former friends who won an exclusive private sneak preview of Halloween at Liseberg - a whole night, all alone in the empty park. But cotton candy, lovely rides and lots of laughter soon turn into something completely different, as they realize they are not alone in the park. And the night of dreams quickly turns into a true nightmare.

设得兰群岛是坐落英国东北部，由一百多个岛屿组成的群岛。自七十年代发现石油以来，群岛一直以石油为主要能源。如今，一个大型风力发电厂正准备开展建设，这对设得兰群岛来说，究竟是福是祸。