Slender Man Review: 2 Ups & 7 Downs

3. The Hilariously Awful Visual Effects

It's a pretty basic rule of low-budget horror that it's smart to dabble in subtlety and keep the elaborate, expensive effects to an absolute minimum.

Slender Man does not subscribe to this maxim.

CGI is featured extensively throughout the film, and it's almost universally awful. Especially jaw-dropping in its awfulness is a sequence where a teenage boy become afflicted by Slender Man and his head contorts and spins around with a digital effect most of us could easily achieve on our home computers.

The finale also serves up some incredibly gaudy effects as Slender Man's full form is revealed, the result of which is more likely to elicit laughs than terror.