9. The Poughkeepsie Tapes (2007)

This mockumentary-style horror film presents an investigation into a fictional serial killer's tapes showcasing his gruesome crimes against unsuspecting victims.
Its unsettling footage leaves viewers questioning reality versus fiction while exploring human depravity.
Content Warnings: Graphic violence, s**ual assault, psychological trauma.
Where to Watch: Tubi, The Roku Channel.
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Edited by Sezal Srivastava