Still Life is a 2005 live action short film (7 minutes) directed by Jon Knautz. It's about a drowsy young driver, who is taking pills to stay awake. When he hits something on the road and stops, the "body" looks like a mannequin. He goes for help; but the town's residents all look like lifeless mannequins, only moving while his back is turned. He reacts badly. Very, very badly.
Me? I'm not leaving the scene. For any reason. This is one horror I can avoid.
It's online at youtube:
I ran across this while I was looking through the horror section of FilmsShort.com.