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.
Susanne arranges a surprise party for her husband, and the guests are waiting back at the apartment. From their hiding places they hear Peter walking into the hall, and they await the signal from the party blower so they can jump out and cheer. But no signal comes. Because Peter is not alone.