Dr. Jekyll and Mr. Hyde (1920)
Dr Henry Jekyll experiments with scientific means of revealing the hidden, dark side of man and releases a murderer from within himself
The Phantom of Paris (1931)
Cheri Bibi is an escape artist wrongly imprisoned for murdering the wealthy father of his admirer Cecile The real murderer is Ceciles fiance, so how will Bibi escape his death sentence and win back Cecile