Every year, the Science of Scare Project gathers together a fresh crop of unsuspecting viewers to help gauge which horror movies are the scariest of them all. For the past few years, Sinister and Host have been battling it out for the top spot, and 2025 is no exception. The study found that, once again, Sinister is the most terrifying horror movie ever made. However, this year, a new film has emerged to crack the Top 25 that was only released a few months ago. For those that have yet to see it, the good news is that it hits streaming on October 3.

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