Clamence, the protagonist of Albert Camus’s The Fall, serves as a subject that presents a rich psychological study for examining and interpreting Lacanian psychoanalysis. This paper explores Lacan’s The Mirror Stage as Formative of the I Function from Écrits, highlighting the concepts of the Ideal I, Ideal Ego, and ego-defense mechanisms while blending Lacanian psychology with Camus's existential philosophy. Clamence, a former Parisian lawyer, experiences a moral and ideal collapse and psychological fall following his guilt over failing to save a woman who jumped from a bridge, compounded by the subsequent public humiliation. This overwhelming guilt transforms him into a self-proclaimed judge-penitent in Amsterdam. These psychoanalytic concepts contribute to the psychological depth and complexity of Clamence’s character. This paper examines Clamence's dual role as both judge and penitent from a Lacanian psychoanalytic perspective.