The wealthy, powerful Snaeberg clan has gathered for a family reunion at a futuristic hotel set amongst the dark lava flows of Iceland's remote Snaefellsnes peninsula. Petra Snaeberg, a successful interior designer, is anxious about the event, and her troubled teenage daughter, Lea, whose social-media presence has attracted the wrong kind of followers. Ageing carpenter Tryggvi is an outsider, only tolerated because he's the boyfriend of Petra's aunt,...