Excerpt: Slender Man is exceedingly thin in plot, character, craft, expansion of its viral internet roots, and is most lightweight where it matters most.
Excerpt: The film certainly has more atmosphere and mood compared to other teen horror movies. However, under all those stylistic flourishes is just another junky teen horror movie complete with all the same drawbacks and none of the potential creativity.
Excerpt: Crunchy Woodland Sound Effects, The Movie!
Excerpt: Overall, Slender Man is just another nail-biting knockoff flexing its morbid muscles without contributing anything mildly innovative or invigorating to the already over-saturated horror genre. Whatever toxic flabbiness was needed to the Slender proceedings considerably fell at the waist side in dull, drawn-out debauchery.
Excerpt: The young actresses try to live this movie up but 'Slender Man' is one of the most lifeless, boring, and dull horror movies in years.