A unique lengthy filmic record of the life of the employees, suspects and convicts in one of the ol­dest Russian prisons Butyrka Prison Castle, which stores legends and secrets of many inmates inclu­ding Emelyan Pugachyov, Felix Dzershinsky, Vladimir Mayakovsky, Alexander Solzhenitsyn, Natalia Sats, Vsevolod Meyerkhold, Sergey Korolyov, Andrey Tupolev and many others.