Eight weary film-makers, travelling from Paris to Basel, arrive at a small Swiss hotel on the shores of a luminous lake. Above them, strewn with lights that twinkle in the darkness, looms the towering Rigi mountain. Over the course of three days and two nights, the travellers will find themselves drawn in to the mystery of the mountain reflected in the lake. One by one, they will be disturbed, enlightened, and transformed, each in a different way.