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17 Unsettling True Stories That Were So Messed Up They Became Movies

Good luck falling asleep tonight.

We asked the BuzzFeed Community to tell us the scariest movies that were based on true events. Here are the terrifying results.

1. When a Stranger Calls (1979, 2006)

2. The Conjuring (2013)

3. Scream (1996)

4. Zodiac (2007)

5. In Cold Blood (1967)

6. The Strangers (2008)

7. The Texas Chain Saw Massacre (1974)

8. The Exorcist (1973)

9. Annabelle (2014)

10. The Possession (2012)

11. Silent Hill (2006)

12. Jaws (1975)

13. A Nightmare on Elm Street (1984)

14. Deliver Us from Evil (2014)

15. The Exorcism of Emily Rose (2005)

16. House of 1000 Corpses (2003)

17. And The Girl Next Door (2007)

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