Metamorph's are mutant people who retain a sense of humanity. Nevertheless humans shun and exile them from civilization as their powers begin to manifest themselves.
Stitches survived for a time, using his powers to keep himself alive. Now he's been caught and taken from the slums of his hometown. Like a cornered animal, he'll do anything to conquer the coming trials ahead of him.
But what point is there in living just to draw breath?