What is this sound effect called?

I'm going crazy not knowing, if anyone can help me then great.

http://www.youtube.com/watch?v=oly0y6K51bY&feature=feedbul

The kind of trickle-y sounding one?
It sounds like a distorted xylophone or similar instrument. Or a synthesizer doing a distorted imitation of one.

I don't really know.

It's a violin section playing random notes pizzicato

(assuming the sound effect at 0:06 is the bit you meant)

It's used a lot in horror films.

Yeah, keyboard setup to do a xylophone type sound with a bunch of reverb and/or delay on it. Actually sounds like several overlapping delays.

That'd be my guess.

Or else that pizzicato thing.