A film about the problem of using the "flexible working time" regime in industrial enterprises, institutions and organizations. The film was shot in the shops of the Kaluga radio tube plant, at the production association "Estonslanets" in Kaluga, Kohtla-Järve, Tallinn. The film includes interviews (synchronously): the head of the department of the All-Union Scientific and Methodological Center of the State Committee for Labor of the USSR G.B. Melko, the doctor of the Republican Children's Hospital V.S.Lyubimtsev (Moscow), the engineer-economist of the Kaluga radio tube plant I.A. head of the department of NOT (scientific organization of labor) and wages of the plant NS Tsurenko, city residents. Types of cities.