During Pastor Bob's service one of the congregation takes a turn for the worse, inadvertently birthing himself out of himself; resulting in the arrival of his evil twin - 'Evil Terry'. Pastor Bob takes this as a sign from God, a test, a renewal of his lacking belief - perhaps - perhaps not. Food fights, trouser removal and shotgun exorcisms ensure and like all good things, the story ends in a sing song.
Evil. Just a word. Perhaps. Perhaps not.