Sergey Sharov-Delone worked for most of his life as an architect-restorer, and for many years "did not want to get into politics." However, after the events on Bolotnaya Square on May 6, 2012, Sergei Sharov-Delon became a public defender in the process of riots. The film "Defender" tells about the everyday life of Sergei Sharov-Velon, his daily difficult work, large and small victories, as well as about ridiculous and touching episodes from the life of the "restorer" of public protection as a special phenomenon in the modern Russian judicial system.