Crawling around in poop and mud, always soaked from a cold rain, and monster parasites nipping at your heels. Yep, a metaphor for all of our existences...and also a pretty summary of the Irish film from 2005, "Isolation." When bovines misbehave, humans better watch out. Of course we can't blame the cows when a mad-scientist has induced the behavior. Directed by Billy O'Brien, "Isolation" is a gory one that will have you turning your eyes from the screen.