One of the men in the picture has a look on his face that is almost exactly like the look of evil people in the movies, especially vampires.
Can you figure out which person has the evil look on their face?
If you can, do you know what is happening with his body that gives him that particular evil look?
Or an alternative way to word the question, what is difference between the evil man and the rest of the people that makes him look like an evil monster while the rest of the people look human??