The winter in St. Petersburg in 1893 is the harshest in living memory, as an unknown person has stolen the Heart Cone of the Snow Queen. But while ice and snow reign outside the doors of the Grand Hotel Aurora, the young girl Maus has very different concerns. She cleans the shoes of the guests day and night and has never left the building. It is only when a mysterious woman in white moves into the hotel that her dreary world suddenly becomes exciting and quite dangerous. For the Snow Queen, who cannot live without the Heart Cone, has come to the city to find and punish the thief. And Maus becomes embroiled in events that turn her small world completely upside down. A magical adaptation of the bestseller by Kai Meyer, told in fairy-tale images by shooting star Marie Sann.