This paper discusses Eugene O'Neill's play Mourning Becomes Electra from a psychological point of view. It notes how the play relies on Freudian concepts like the Oedipus and Electra complexes to portray the characters' mental states and suppressed desires, which mold their actions. It analyzes how circumstances in the aristocratic Menon family devastated by mistakes lead Christine to kill her husband Ezra, though her action is understandable given her desperate emotional state and lack of alternatives. Overall, the paper argues the play can be best understood through the psychological portrayal of the characters' minds and souls.