Movie title help!!!

It's a movie about a group of drug dealers hiding out in an abandoned house in the desert. There waiting for thier boss to pick up a case of drugs. As the days pass the men take the drugs and have women come to the place. I think they try to cover up the fact they took the drugs and I believe there is a big shoot out. I also remeber there was a skinny black man with sunglass as the main leader of the bad guys, and also the movie seemed to be broken up by days with titles that would say Monday, Tuesday etc.

I've tried IMBD for plot lookup no help at all. It also does not help I do not know any actors or even a title!

Please anyone help, I know this is probably a rip off movie but I'd like to see it again.