We asked the BuzzFeed Community to tell us the scariest movies that were based on true crime events. Here are the terrifying results.
1. The Town That Dreaded Sundown (1976, 2014)

2. An American Crime (2007)

3. Murder By Numbers (2002)

4. The Texas Chainsaw Massacre (1974, 2003)

5. Jennifer's Body (2009)

6. Annabelle (2014)

7. The Amityville Horror (1979, 2005)

8. The Conjuring (2013)

9. Zodiac (2007)

10. A Nightmare on Elm Street (1984)

11. Scream (1996)

12. Winchester (2018)

13. In Cold Blood (1967)

14. The Strangers (2008)

15. Monster (2003)

16. Bernie (2011)

Note: Submissions have been edited for length and/or clarity.