Railway engineer Sergei Morozov, walking in the Christmas before the New Year 1912 with his wife Masha on Diagon Alley in St. Petersburg, falls under the magical snow, which happens to fall here once in fifty years. Unwittingly still not knowing his wife become the next half-century artists childhood dreams of Christmas - Ded Moroz and Snegurochka. They are shocked with their new opportunities and...