Do you know what Bolito is?
Well, it is some kind of a gadget designed to kill you. It is simply a steel thread with a powerful motor and when someone puts it to your neck, you can't take it off or stop it. So you die.
Now of course I can't tell it as elegant as they do in the movie The Counselor. But I have to warn you, the trailer video has a spoiler.
By the way, I'm not sure if this Bolito thing is real or not. But I know something, this movie is so boring that it might have a Bolito effect on you.