Over 10 years ago, Loznitsa shot astounding black-and-white footage at a psychiatric institution in a forgotten corner of Russia. Since then it has resided in his archive. In recent years, he has made documentaries all on the same subject: ‘Homo Sovieticus’. In Letter he describes this country as a place inhabited by unconscious prisoners. No human voice can be heard and the pain is stifled in this unsullied environment. Also see In the Fog in Spectrum.