 A renowned doctor and his brother live and work together until the brother falls in love with Marie, a singer, and gives up medicine to be with her. After a time however, she misses her old life and goes back on the stage - an act which leads her lover to commit suicide. Later the doctor and Marie also meet, and she becomes his mistress. He finds out about his brother s suicide and goes through his artifacts looking for a clue as to what might have been the cause. He finds a photograph of Marie and realizes the truth, which decimates their relationship.