A Catalogue Of Deadly Errors

If to err is human. What do you call taking someone else's mistake, ignoring the result, amplifying the error, and then repeating it?  When a pair of sociopathic disinherited siblings set out on a nihilistic and greed motivated trail of revenge, without considering the potential consequences, the dominoes start to fall.  But when the lives of the Parker-West family are threatened, it's time for Drew Parker and his daughter to step up.