The film tells about the fate of the French thinker Count C.A. Saint-Simon (1760-1825), about his writings. The narration is illustrated with staged footage. In the role of Saint-Simon - Aristarkh Livanov. Moscow, summer. Alexander Garden. Monument-obelisk with the names of outstanding thinkers and revolutionaries (1st part). France. Versailles. Palace and park ensemble: views of the palace; swimming pools; fountains; sculptures; alleys; flower beds, lawns; visitors; cars on the site in front of the gate; street vendors; monument to Louis XIV (1st, 2nd). Paris. Cemetery Père Lachaise: family crypt of the Saint-Simon family; headstones on graves; alleys (Ich - IIh). View of the old manor. The bride and groom are sitting in the clearing in front of the estate (IIh.). Paintings, drawings, caricatures, engravings of the 18th-19th centuries. (I-IIIh.).