Hi John!
The unsettling chord progression probably serves the circumstance really well - based on your description of the context. Those strings in the background support the tension really well also. Your singer (from Fiverr?) has a vocal tone that reminded me of Colin Blunstone of The Zombies.
It might not be a single, but it would be a really solid album track!
Liked it!
Andrew
PS What is the chord progression? Would you mind sharing it?