When we hear an unfamiliar word, it becomes a strange sound for us. When we hear a sound resembling speech, it is perceived as an unknown word. What happens in our minds when we hear something - do we know in the audible word or just a sound? What should I do to turn a sudden sound into a word? Croatian performer Vesna Matskovich and Russian musician Roman Stolyaris pursue a delicate line between sound and word, visible and invisible, audible and inaudible.