The Lost House (1915)

Before his niece and ward Dosia Dale comes of age her uncle who has spent her entire fortune must think of a way to account for his actions He proposes marriage and when Dosia indignantly refuses him he conspires with his evil friend Dr Protheroe to do away with her Declaring Dosia insane the two men lock her up in the doctors insane asylum but she manages to drop a note from the window Her plea for help is found by a reporter named Ford who feigns insanity in order to gain admittance to the asylum Dr Protheroe becomes suspicious of Ford and locks him up with Dosia whereupon Ford knowing that his friend Cuthbert will notify the police if he and Dosia do not emerge safely by twelve barricades the door and waits In a furious battle with the police and the militia Dosias uncle and Dr Protheroe are killed and the house set ablaze but Ford and Dosia escape leaping from the roof into a fire net below All danger passed Ford and Dosia become engaged