VINCENT
Okay, what do I do?

LANCE
Well, you're giving her an
injection of adrenalin straight to
her heart. But she's got a breast
plate in front of her heart, so you
gotta pierce through that. So what
you gotta do is bring the needle
down in a stabbing motion.

Lance demonstrates a stabbing motion, which looks like "The
Shape" killing its victims in "HALLOWEEN."