If you enjoy stories about real-life serial killers, you’ve had a lot to consume on television in recent years. Monster: The Ed Gein Story has been on everyone’s lips lately. Before that, there were Dahmer, Das, and many others. These shows are as scary as they are informative. They are also cautionary, warning us to always look out for the little signs that everyone tends to ignore. But what about movies? Are there any great horror movies based on real serial killers?

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