The true crime genre is one of the most popular on Netflix, and the streaming giant has crafted some scary documentaries on Netflix. What makes true crime documentaries so popular is that the format allows viewers to work out their deepest anxieties in a safe setting. More often than not, these stories have a definitive ending in which the perpetrator is caught, the mystery is solved, and audiences feel lucky that they watched the horrors of the case unfold on the screen rather than in real life. However, not all crime documentaries see the perpetrator behind bars by the story’s end.
https://screenrant.com/genuinely-scary-crime-documentaries-on-netflix/