The film tells about the tragic death of the ballerina of the Mariinsky Theater Lidia Ivanova. The film was shot in St. Petersburg. The film uses unique documents, film and photographic materials from the beginning of the century and other filming. The storehouse of the Theater Museum of St. Petersburg, the curator of the museum demonstrates Lidia Ivanova's pointe shoes, a view of Nevsky Prospekt, views of St. Petersburg in the 1920s, a general view of the Gulf of Finland, the Alexandrinsky Theater, a rehearsal of Boris Eifman's ballet "Red Giselle". Fragment of the ballet "Ballet class" (synchronously). Exhibition of artists at the Academy of Arts (1920s). Artists walk along the embankment of the Neva River, enter the exhibition hall, take pictures at the sphinxes. Stage of the Mariinsky Theater. Ballerina L. Ivanova in the film "Palace and Fortress", in which she dances on the stage of the Hermitage Theater.