(c) Copyright 2004. Touchstone Pictures.
No matter how much one tries to escape the evil in this world, they will fail. This is because evil is not 'out there' somewhere, hiding in the dark or hiding in the woods. Evil is 'inside' every one of us. Evil is in our hearts and it can only be fought from the inside-out.
In the same way, the 'puritanical' Christian sub-culture was created for the purpose of 'escaping' the ills of society, but evil (sin) still lurks nearby. Sin cannot be destroyed by leaving society or by 'running away'. It can only be destroyed by the sinless one, who became sin for us, that we might have eternal life in that 'Village' where evil cannot reside.