 Its most recent creation is Edward Charles Warren, otherwise known as "Nailbiter" due to his predilection for chewing off his victim's nails and part of their flesh.By the series's start Warren has been caught by FBI agent Charles Carroll, however Carroll has since gone missing, leaving it up to his friend and NSA agent Nicholas Finch to search for him.Nicholas decides to start his search in Buckaroo, where he begins to question why the small town has produced so many murderers.