Industrial enterprises in Leningrad: machine-building plant "Proletary", Leningrad "Nevsky plant named after V. I. Lenin", industrial association "Zvezda" and others, switched to cost accounting. Enterprise managers and workers talk about their assessment of the new form of work. Meeting of members of the Board of Directors of enterprises. Factory shops, workers at work. Training and production area of the Proletary plant. Students work on numerically controlled machines. Sports and recreation complex of the Bolshevik plant. Athletes are engaged. Sewing workshop of the Experimental plant "Sport". Seamstresses at work, at lunch at the workplace. FS Alekseev, Chairman of the Executive Committee of the Nevsky District of Leningrad, at the Rabochy factory. Workers talk about housing problems.