"Slenderverse: Building the Slenderman" from director Alex Hera chronicles the untold story of the Slenderverse: the biggest internet horror movement of the 2010's, centered around the viral icon Slenderman. The film reveals new information and stories about the development of the Slenderman myth, from its birth on the SomethingAwful forums, development through webseries Marble Hornets and EverymanHYBRID, and a network of immersive blogs. Through incisive interviews with Slenderverse community members including Tim Sutton of "Marble Hornets", Jeffery Koval and Evan Jennings of "EverymanHYBRID", Slenderman blog authors Andrew Koerner and Tom Horan, internet horror influencer Night Mind, as well as famed horror artist Trevor Henderson, "Slenderverse: Building the Slenderman" tells a story of collaborative mythmaking and horror on the early internet.

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