Here's why Apple's Siri is Psycho, according to this video

You might have seen many funny spoof or prank videos around the web which showcase Apple’s personal assistant app 'Siri' from iPhone 4S. But now I can bet, you haven't seen anything like this before with such great visual effects. 
This video below made by andrewm films called 'Psycho Siri' is a short four-minute film that aptly depicts "An abandoned iPhone turns out to be a killer of a deal,". The video has already recived 69,000 YouTube hits.
Before you start creeping out, just watch this and hit the Share button.