1917 - Der wahre Oktober

1917 - THE TRUE OCTOBER is a cinematographic re-enactment of the Russian Revolution. What happened in St. Petersburg, at that time Petrograd, in the period between the uprisings in February, which forced the tsar to abdicate, and the seizure of power by the Bolsheviks in October? In this phase of the Provisional Government, a double-domination of the Parliament Duma, as well as the workers 'and soldiers' councils, the Soviets, Russia sank into chaos and anarchy. In the midst of the ongoing world war, it remained without a binding constitution. Why was it that no bourgeois-parliamentary democracy was formed? How did the return of Lenin and Trotsky change the situation in spring?