Suggestions? Okay, well... Martha-Allie's husband has to have some deep dark secret... maybe an old cache of Ralph Nader campaign literature?
You know, back when they were young and foolish... Or maybe a secret addiction to lattes instead of plain honest coffee?
A brown-bag subscription to the New York Times?
And then you need the mysterious stranger who's looking for someone... He can be Bill, the local septic tank guy. (Or maybe Bob the Builder... err, no, wait, that one's taken...) Someone in town lured a young innocent girl into something sordid, like modeling? The poor thing's now in LA rolling in cash and depravity, and someone's gotta pay for leading her astray...
Maybe that'll help get you started
PJ