SChamberlain’s review published on Letterboxd:
Documentary on the 'Slenderman' case, in which a pair of 12-year-old girls attempted to murder their friend, in order to win favour from the Slenderman, an internet horror figure who doesn't actually exist.
The film focuses on the girls to a large degree, with relatively short discussion of the Slenderman meme or the way such ideas spread (though the editor of Know Your Meme is interviewed, along with Richard Dawkins discussing Slenderman as a meme in the original sense). I would have preferred more discussion of the latter, as the explanation for the girls' behaviour is relatively straightforward and sad - mental illness and an inability to distinguish fact from reality.