"it's silence of the lambs meets death of a salesman, as a rural two-hander" All jokes aside, It's honestly maybe the most "commercial" story I've ever done. But also... Not?

It may or may not be relevant/useful (and given your background there’s a high likelihood it’s already in yr radar). But the Martin McDonagh play ‘The Pillowman’ may be worth a read. Cannot wait to see where you land with this!