After robbing a casino in Vegas, A pair of prodigal biracial twin arrive in New York to start a new life but the trouble they lelf in Vegas didn’t stay in Vegas

There's no need to include that these twins are Biracial (not that they can't be Biracial, you can make them what you want) and I don't understand what is meant by them being "Prodigal". Nothing really tells me anything about these characters in the end of the day.

All in all, it's about 2 robbers who find that they've pissed off the law or someone else they shouldn't have after committing a crime. I don't see anything in that premise that stands out.

Is there any unique twist in the idea?

Actually pretty darn good -- I'm intrigued!