Hans Scharoun has built houses which show not only structural substance and aesthetic forms but also how human beings should live in buildings. This depiction can only be imaginary - like reading invisible writing on walls. Bitomsky's film looks at several of Scharoun's buildings.

Barrage and Bunker is an essay film about the (narrative) space imagined by fiction films. Reflections and associations about movement in space are the basis of every kind of story-telling. The film is sometimes referred to as part of Bitomsky's Cinema Trilogy. Sequences from over 20 movies are quoted and commented on by a team of three "researchers" (Bitomsky, Petzold, Tanner) in a sort of laboratory. TV-monitors, production stills and screenshots are used as well as quotations from books. A long night's work.

How should one define the relationship of documentary film to reality? Does it aim at authenticity or is it rather an “exile of reality”, a “foreign homeland of reality”, where the pre-filmic, stripped of its immediacy, comes to its own right in the first place? Where in its mis-en-scène would be the line drawn to a fictional film, if drawing a line would succeed at all? These are the kind of questions this film essay on the history and aesthetics of documentary film deals with in its seven chapters.