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If you're unlucky enough to be trapped alone by a sudden force field that manifests as invisible walls, there'd be few better places to find yourself than a well-stocked three-storey alpine chalet. Not only is there a friendly mutt, an abundance of wild game, a pregnant cow and a ton of guns, there are also knockout views for when the loneliness gets especially crushing.

Marlen Haushofer's 1963 feminist allegory – a perennial in the German bestseller charts – is devotedly transferred to the big screen and powerfully played by veteran actor Martina Gedeck (a disconcerting double for Davina McCall). But the sheer quantity of voiceover – or, more likely, subtitles – acts as a barrier to deep psychological immersion.