This study focused to analyze the effects of poverty on the human psyche reflected in Rupert Brooke’s one-act play, entitled Lithuania, especially on the factors and reasons that make the characters of the play decide to kill the quest. The writers used the descriptive qualitative method based on library research in conducting this study. Data were derived from different sources. The main data were derived from the play itself, while the supporting ones were derived from e-books, journals of English literature, books and journals of psychology, and other sources from the internet. The writers used Freud’s psychoanalysis theory in exploring the study. It was found that poverty had an important role in giving negative effects on the character’s psyche. The poverty made the characters fail to hold the id drive in trying to possess the wealth of the quest by killing him.