This interpretation of Michał Choromański's novel Schodami w górę, schodami w dół ( Upstairs, Downstairs) focuses primarily on issues related to the inner life of the characters and the representation of the outside world in the context of classical psychoanalysis. The appropriateness of the psychoanalytical approach is justified by numerous references to Freud's theory in the text of the novel. The study reaches out to Choromański's other novels and short stories, but embarks on a more systematic comparison of Schodami w górę, schodami w dół with only one of them, Zazdrość i medycyna ( Jealousy and Medicine), his most popular novel published in 1936.