This text deals with the 1971 play Jednym tchem (In one breath), performed at the Theatre of the Eighth Day (Teatr Osmego Dnia) and based on Stanislaw Baranczak’s poem. Lech Raczak outlines the methods used in the play, the characters, way of presenting a poetic text and the music in the performance. The author uses fragments of performance records published in his previous book Szalenstwo i metoda. 48 tekstow o teatrze (Madness and method. 48 texts about theatre) (Wydawnictwo Miejskie Posnania, Poznan 2012).