Like this dude can be totally square and the "good man" archetype through the beginning of the film but the stress and money issues along with a no good brother who is always trying to get him to join in on his fukkery eventually leads him down this tragic path. He can then struggle mentally with his desire to be a good man but the desire for the money and cash is just too strong.
Do we have some screen writers on this board? This shyt would be hot!

If you are out there, work on that.
To be honest, this has a bit of Dead Presidents vibe but you could make it unique enough to stand out