The jury may be out on whether Mama, the new Guillermo del Toro film starring Jessica Chastain, is actually any good. But the motion test for actor Javier Botet, who plays the film’s ghost, Mama, will scare the shit out of you.

Botet has Marfan syndrome, a connective tissue disorder which causes and elongation of the body and the fingers. 

In this motion screen test, posted on the blog io9, Botet is seen skulking around in a wig and generally being creepy. SlashFilm explains that those wires you see are Botest literally being manipulated like a marionette; two special effects studios also added more layers of creepiness.  

You can also see a scary-ass pic of Botet from Mama on the blog HorrorBoom (scroll down to the bottom of the page). 

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