In July 1859 in this house, visiting the last commandant A.F. de Grave, was visited by the writer FM. Dostoevsky. The central part of the museum exposition is devoted to its life and work, and – above all – the Omsk period (1850-1854). Convicted of participating in the Petrashevsky, F.M. Dostoevsky spent four years in Omsk penal servitude. In the basement of the museum, the chamber of Omsk prison of the middle of the XIX century is reproduced. The interior of the prison barracks gives an idea of the conditions of penal servitude.