A corporate burnout turned janitor receives a call from his ex-wife wanting to rekindle their marriage. Desperate to make it work, he must tell the truth and divulge his new career as a janitor.

This is a great premise- however that is all that it is, as you have not really described the main plot line.

I can see it going many different ways, some dramatic and some comedic. I think this is actually a good rom-com setup, even though you've indicated it's a short.

Love the concept!

Wouldn't the conflict be that he tries to hide his new career?

And what is at stake for him? Does he also want to rekindle the marriage?