Ida's Dance

Anna Chebneva, an officer of the Leningrad UGR, was investigating a series of armed robberies of savings banks. The criminals had a long streak of luck, but one day the robbers were caught, and one of them was shot while trying to escape. After that, someone kidnapped Anna's young daughter, and the girl was taken out of the country. Why was such a cunning move necessary, and was revenge the only motive driving the seasoned gang leader? Will anyone help Anna, and what does the famous dancer Ida Rubinstein have to do with it?