A congress for theoretical physicists in the snow-covered Swiss Alps is the spectacular setting for this truly extraordinary film, which plays with the idea of the multiverse and the infinite possibilities it suggests. Doctoral student Johannes (Jan Bulow) arrives with his disagreeable supervisor, expecting to hear an eminent Iranian scientist talk about his theory of quantum mechanics. But the keynote speaker doesn’t show up, another scientist is murdered, strange and apparently poisonous clouds billow overhead and, most mysteriously of all, there are ominous roars coming from tunnels rumoured to run under the mountains. Meanwhile, Johannes is falling for the hotel’s enigmatic pianist (Olivia Ross) who seems to know things about him he hasn’t told anyone – not in this universe, anyway.