The building of the House of Unions during the trial of the Mensheviks. Convoy of the defendants to the hall. The audience in the hall during the trial (among them the editor of "Rote-fan" Wilhelm Peak). Antonov-Ovseenko V.A., Shvernik N.M., Krylenko N.V. and other members of the court. The testimony of the defendants. Speech by State Prosecutor Roginsky.