This document provides an overview of Eugene O'Neill's play "Mourning Becomes Electra". It discusses expressionism as a modernist movement originating in Germany in the early 20th century. Expressionism rejects realism and naturalism, using distorted representations to convey subjective emotions and psychological states. The play is an example of expressionism, with distorted characters and dialogue expressing diseased minds and a case study for psychiatrists. It explores themes of family, guilt, incest, and death through the dysfunctional Mannons family after the death of the patriarch Ezra.