A suicidal alcoholic’s last day teems with images of anxiety and Kafkaesque paranoia       Adapted from Marek Hlasko’s novel ‘The First Step in the Clouds’, Has’ feature debut is cinematic delirium tremens, as young man Kuba Kowalski escapes his cramped flat to wander from bar to bar, unable to escape the trap of isolation       The metaphorical noose tightens as Kuba, nearly saved by the love of a good woman, dives deeper into hallucinatory intoxication