What madness is this?

Just in time for Halloween, someone let this cat loose on a theremin, which we now know is the instrument equivalent of a laser pointer. The result is a perfectly eerie scene in which the cat appears to mindlessly bat at nothing at all. This, of course, isn't so different from cats without theremins. 

Bonus cat friend whose mind was just blown at the end. 

Sources: harlemtwerk on YouTube