A city of singing cats is preyed upon by a shadowy figure intent on performing a twisted feline symphony. The Cat Piano is narrated by the main character of the animated short, an anthropomorphic cat. It is clear that the narration is a poem, which the poet is typing on a typewriter. In the beginning, we are introduced to his city's love of music and musical prowess. The poet singles out one female singer of whom he is clearly enamored, quoting her singing as "A voice that made all the angels of eternity sound ... tone deaf". Shortly afterwards we are introduced to an overbearing structure beyond the sea, appearing to be a lighthouse. Its light quickly goes out, foreshadowing malevolence.