What’s scarier than things that go bump in the night? Knowing they might be real. These ten documentaries — from real-life paranormal activity to famous murder trials — uncover the truth behind the myths and legends that have fueled some of the scariest American horror tales that still keep us up at night. – Olivia Armstrong,Decider

1. My Amityville Horror
2. Killer Legends
3. Room 237
4. Cropsey
5. The Jeffrey Dahmer Files
6. The Act of Killing
7. Paradise Lost: The Child Murders at Robin Hood Hills
8. Capturing the Friedmans
9. Titicut Follies
10. The Imposter  

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