Dark Tower: The Gunslinger - The Little Sisters of Eluria

Near death from an attack by slow mutants, Roland Deschain is taken in by a group of nuns who specialize in anything but the healing arts. These hideous, corpse-like creatures-the Little Sisters of Eluria -have murder on their twisted minds. And in his current condition, there's almost nothing the last Gunslinger can do to prevent their tender mercies from taking hold.