The abridged version:
After the bucktoothed, spittoon-toting pastor delivers a fire-and-brimstone sermon at an asbestos-ridden Presbyterian church in rural Tennessee, my mother feels moved by the spirit.
She retreats to a backroom to get saved, but ends up with the pastor groping her chest. Furious that the pastor is a lecherous old perv, my family decides to go all I Piss on Your Grave on his ass.
I begin conversing with a ham sandwich shellacked in careful detail as a shrine to the Nativity scene with the little sprigs of lettuce denoting a goodwill Olive branch.
"The Nun Bun doesn't have nothing on my ass," the shellacked Nativity scene sandwich tells me.
For some reason, I become convinced that this sandwich is Jesus.
At the last minute, right before my family exacts revenge, a cavalcade of cops barrels through a side door. They arrest the pastor on embezzlement charges.
As the end credits roll (end credits?), I grapple with the death of Sandwich Jesus. It seems that one of the cops has chomped him to bits.
"Oh, my Lord," I wail as I comb through pieces of lettuce and Swiss cheese. "Father, I have forsaken you."