Clara is a beautiful young woman who spends her days putting puzzles together. For her, it’s at once a game, an obsession and a vocation: She adores challenges and last-minute mysteries. She awaits with eagerness when she can scatter the pieces, only to begin again. Her life and loves obey the same logic, her insouciance raised to the level of high art. The appearance of a strange adolescent come from Russia disturbs her universe. Living like an exiled prince, haunted by the customs and vices of the Romanov Empire, he reigns over two servants in an abandoned factory. Haughty and fixed in his fantasy world, boyish and yet tyrannical, Alexeï poses an enigma for Clara. Will she succeed at putting together the pieces of her latest puzzle?