Bugajski's horrifying film was originally banned under martial law. When cabaret artiste Tonia (Janda) is imprisoned without explanation, she assumes there has been a bureaucratic slip-up. Gradually, however, it becomes clear she is there for a reason: betrayal. Days become months. The monotonous deprivation of the prison cell is varied only by the persuasion, intimidation and torture of interrogation, but Tonia will not break. If, in a sense, this is a period film twice over - made in '82, set in '51 - its impact is as current as it ever was, and its allegorical implications have proved prophetic: the trajectory is very much freedom through fortitude and perseverance. Drained of colour, largely without music, resolutely intimate, it makes for a harrowing couple of hours, but the shifting power-plays between Tonia and her inquisitors are subtly conveyed, while the nuances distinguishing subjective and objective guilt inevitably suggest Kafka and Orwell.