We don't really know much about Sarah or the house itself. Why did she build 160 labrynth style rooms? Hallways that go nowhere? Was she really afraid of the ghosts taht were shot from her Winchester firearms? Was she just a bored eccentric? There are many theories. Here are some films presenting various information.
1963 Documentary
History Channel
1985 Documentary
The "Cursed" Heiress
ADDITIONAL READING