 Christopher Lee stars in this Amicus production of "Dr. Jekyll & Mr. Hyde" where the names have been changed to Dr. Marlowe and Mr. Blake. Lee as Dr. Marlowe experiments with intavenious drugs that are suppose to release inner inhibitions. So comes forth Mr. Blake(also Lee)who gets more mostrous with each transformation(Physicaly as well as personality). Peter Cushing plays his friend and colleague, Dr. Utterson.