Written by Fredric March

Summary:

Dr. Henry Jekyll believes that there are two distinct sides to men - a good and an evil side. He believes that by separating the two man can become liberated. He succeeds in his experiments with chemicals to accomplish this and transforms into Hyde to commit horrendous crimes. When he discontinues use of the drug it is already too late..

 Henry "Harry" Jekyll is a well respected member of London society. In his personal life, he is pre-engaged to Muriel Carew, the daughter of a brigadier general. In his professional life, he is a medical doctor, scientist and academician. He theorizes that in each man is a good side and an evil side which can be separated into two. In doing so, the evil side can be controlled and the good side can live without worry, in combination leading to the betterment of society. In his experiments, he uses himself as the subject to test his hypothesis. His evil side, who he coins Mr. Hyde, escapes into London, and terrorizes party-girl Ivy Pierson. Jekyll, aware of Hyde's goings-on, decides to stop his experiments because of the suffering he has caused Ivy. What Jekyll is unaware of is how ingrained Hyde is in Jekyll's life.